jlewi/gist:6d9341ca7db70efa6c3eb42398c30027

## gistfile1.txt
{
  "title": "What is a changenotifier class in dart?",
  "creationTime": "2023-03-20T15:46:07.385",
  "messages": [
    {
      "fromID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
      "toID": "1",
      "blocks": [
        {
          "type": "text",
          "text": "What is a changenotifier class in dart?"
        }
      ],
      "creationTime": "2023-03-20T15:46:22.691"
    },
    {
      "fromID": "1",
      "toID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
      "blocks": [
        {
          "type": "text",
          "text": "A changenotifier class in Dart is a class that extends the `ChangeNotifier` class from the Flutter framework. The `ChangeNotifier` class provides an implementation of the `Listenable` interface, which can be used to inform registered listeners of any changes to the state of an object. \n\nSource: https://api.flutter.dev/flutter/foundation/ChangeNotifier-class.html"
        }
      ],
      "creationTime": "2023-03-20T15:46:37.833"
    },
    {
      "fromID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
      "toID": "1",
      "blocks": [
        {
          "type": "text",
          "text": "What is a MultiProvider in flutter?"
        }
      ],
      "creationTime": "2023-03-20T16:18:28.240"
    },
    {
      "fromID": "1",
      "toID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
      "blocks": [
        {
          "type": "text",
          "text": "In Flutter, there is no concept called MultiProvider by default. However, MultiProvider is a common package in the Flutter community that allows the combination of multiple providers and a cleaner and more organized dependency injection. MultiProvider is part of the Provider state management package, which is commonly used in Flutter applications. \n\nSource: https://pub.dev/packages/provider"
        }
      ],
      "creationTime": "2023-03-20T16:18:36.185"
    },
    {
      "fromID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
      "toID": "1",
      "blocks": [
        {
          "type": "text",
          "text": "In flutter what's the difference between a stateless and stateful widget?"
        }
      ],
      "creationTime": "2023-03-20T16:41:58.812"
    },
    {
      "fromID": "1",
      "toID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
      "blocks": [
        {
          "type": "text",
          "text": "In Flutter, a stateless widget is a widget that does not change its properties once it is built. A stateless widget is useful when the part of the user interface you are describing doesn’t depend on anything other than the initial configuration data provided to the widget.\n\nOn the other hand, a stateful widget is a widget that can change its properties over time based on user interactions or other factors. Stateful widgets are useful when you need to capture user input, display changes in real-time, or handle animations, for example.\n\nYou can learn more about stateless and stateful widgets in the official Flutter documentation: https://flutter.dev/docs/development/ui/widgets-intro#stateless-widgets"
        }
      ],
      "creationTime": "2023-03-20T16:42:10.603"
    },
    {
      "fromID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
      "toID": "1",
      "blocks": [
        {
          "type": "text",
          "text": "In flutter how would you create a statefulwidget to store user preferences using the shared_preferences package?"
        }
      ],
      "creationTime": "2023-03-20T16:43:28.510"
    },
    {
      "fromID": "1",
      "toID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
      "blocks": [
        {
          "type": "text",
          "text": "To create a `StatefulWidget` to store user preferences in Flutter using the `shared_preferences` package, you can follow these steps:\n\n1. Add the `shared_preferences` package dependency to your app's `pubspec.yaml` file.\n\n2. Import the `shared_preferences` package in your code:"
        },
        {
          "type": "code",
          "lang": "python",
          "source": "\n   import 'package:shared_preferences/shared_preferences.dart';",
          "index": 0
        },
        {
          "type": "text",
          "text": "\n\n3. Create a StatefulWidget class that will hold your app preferences:"
        },
        {
          "type": "code",
          "lang": "python",
          "source": "\n   class MyAppPreferences extends StatefulWidget {\n     @override\n     _MyAppPreferencesState createState() => _MyAppPreferencesState();\n   }",
          "index": 0
        },
        {
          "type": "text",
          "text": "\n\n4. Create a State class that will hold your preferences data and manage its lifecycle:"
        },
        {
          "type": "code",
          "lang": "python",
          "source": "\n   class _MyAppPreferencesState extends State<MyAppPreferences> {\n     SharedPreferences prefs;\n     \n     @override\n     void initState() {\n       super.initState();\n       SharedPreferences.getInstance().then((value) {\n       setState(() {\n         prefs = value;\n          });\n        });\n     }\n\n     @override\n     Widget build(BuildContext context) {\n       return Container(); // This is where you would return your app's main UI component\n     }\n   }",
          "index": 0
        },
        {
          "type": "text",
          "text": "\n\n5. Use the `SharedPreferences` instance to get and set your preference values wherever you need them in your app. Here are some example functions:"
        },
        {
          "type": "code",
          "lang": "python",
          "source": "\n   void savePreference(String key, String value) async {\n     await prefs.setString(key, value);\n   }\n\n   String loadPreference(String key) {\n     return prefs.getString(key);\n   }",
          "index": 0
        },
        {
          "type": "text",
          "text": "\n\nReferences:\n- Flutter documentation on `shared_preferences`: https://pub.dev/packages/shared_preferences\n- Dart documentation on how to use Future and async functions: https://dart.dev/codelabs/async-await"
        }
      ],
      "creationTime": "2023-03-20T16:43:50.490"
    },
    {
      "fromID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
      "toID": "1",
      "blocks": [
        {
          "type": "text",
          "text": "What is a FutureBuilder in flutter?"
        }
      ],
      "creationTime": "2023-03-20T18:11:02.192"
    },
    {
      "fromID": "1",
      "toID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
      "blocks": [
        {
          "type": "text",
          "text": "A `FutureBuilder` in Flutter is a widget that builds itself based on the latest snapshot of interaction with a `Future`. It is used to represent the moment when the future completes, and the data is available, by populating the UI elements based on the state of the `Future`. \n\nSource: https://api.flutter.dev/flutter/widgets/FutureBuilder-class.html"
        }
      ],
      "creationTime": "2023-03-20T18:11:12.115"
    },
    {
      "fromID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
      "toID": "1",
      "blocks": [
        {
          "type": "text",
          "text": "In Flutter what is a TextEditingController?"
        }
      ],
      "creationTime": "2023-03-20T18:14:02.936"
    },
    {
      "fromID": "1",
      "toID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
      "blocks": [
        {
          "type": "text",
          "text": "In Flutter, a TextEditingController is a class that allows you to control and manipulate a text input field from a TextField widget. It is used to retrieve the value entered by the user and for programmatic manipulation of the text field. You can use methods like `textEditingValue`, `clear()`, `copy()`, `cut()`, `paste()`, `selectAll()`, `selection`, `text`, etc. to manipulate the text field programmatically.\n\nSource: https://api.flutter.dev/flutter/widgets/TextEditingController-class.html"
        }
      ],
      "creationTime": "2023-03-20T18:14:13.821"
    },
    {
      "fromID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
      "toID": "1",
      "blocks": [
        {
          "type": "text",
          "text": "How do you use a TextEditingController to set the initial text in a text field?"
        }
      ],
      "creationTime": "2023-03-21T05:57:35.472"
    },
    {
      "fromID": "1",
      "toID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
      "blocks": [
        {
          "type": "text",
          "text": "To set the initial text in a text field using a `TextEditingController` in Flutter, you can call the `text` property on the controller and pass in the desired text to display. For example, if you have a `TextEditingController` called `myController`, you can set the initial text of a `TextField` widget by doing:"
        },
        {
          "type": "code",
          "lang": "python",
          "source": "\nTextField(\n  controller: myController,\n  decoration: InputDecoration(\n    labelText: 'Enter text',\n  ),\n),",
          "index": 4
        },
        {
          "type": "text",
          "text": "\nAnd then in the `initState()` method of your widget, you can use `myController.text = \"Initial Text\"` to set the text that will be initially displayed in the text field.\n\nSource: https://flutter.dev/docs/cookbook/forms/text-field-changes"
        }
      ],
      "creationTime": "2023-03-21T05:57:48.344"
    },
    {
      "fromID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
      "toID": "1",
      "blocks": [
        {
          "type": "text",
          "text": "How would you initialize a text form field with sharedpreferences"
        }
      ],
      "creationTime": "2023-03-21T05:59:55.138"
    },
    {
      "fromID": "1",
      "toID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
      "blocks": [
        {
          "type": "text",
          "text": "In Android development, you can initialize a text form field with SharedPreferences by following these steps:\n1. Retrieve the SharedPreferences object using the `getSharedPreferences()` method.\n2. Get the value of the text field from SharedPreferences using the `getString()` method. You can also provide a default value in case there is no value stored for this key.\n3. Set the value of the text form field using the `setText()` method.\n\nHere's an example code snippet:"
        },
        {
          "type": "code",
          "lang": "python",
          "source": "\n// Retrieve the SharedPreferences object\nSharedPreferences sharedPreferences = getSharedPreferences(\"MyPrefs\", MODE_PRIVATE);\n\n// Get the value of the text field from SharedPreferences\nString textFieldValue = sharedPreferences.getString(\"textFieldKey\", \"\");\n\n// Set the value of the text form field\nEditText textField = findViewById(R.id.text_field);\ntextField.setText(textFieldValue);",
          "index": 5
        },
        {
          "type": "text",
          "text": "\n\nSource: https://developer.android.com/training/data-storage/shared-preferences"
        }
      ],
      "creationTime": "2023-03-21T06:00:08.031"
    },
    {
      "fromID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
      "toID": "1",
      "blocks": [
        {
          "type": "text",
          "text": "With a text editing controller how do you respond to  text changing?"
        }
      ],
      "creationTime": "2023-03-21T06:10:30.210"
    },
    {
      "fromID": "1",
      "toID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
      "blocks": [
        {
          "type": "text",
          "text": "To respond to changes in text in a text editing controller, you can take advantage of the callback functions provided by the controller. In particular, you can use the on_change property to specify a function that will be called whenever the text in the controller changes. The function will receive as input the new value of the text, which can be used to perform any necessary actions. You can refer to the documentation for the specific text editing controller that you are using for more information on the on_change property and how to use it."
        }
      ],
      "creationTime": "2023-03-21T06:10:38.146"
    },
    {
      "fromID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
      "toID": "1",
      "blocks": [
        {
          "type": "text",
          "text": "How would you perform some action when a text form field loses focus?"
        }
      ],
      "creationTime": "2023-03-21T06:11:13.294"
    },
    {
      "fromID": "1",
      "toID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
      "blocks": [
        {
          "type": "text",
          "text": "To perform an action when a text form field loses focus, you would use an event listener called \"blur.\" \n\nIn JavaScript, you can attach an event listener to an element using the `addEventListener()` function. For example, the following code would add a `blur` event listener to an `input` element with the ID `myInput`:"
        },
        {
          "type": "code",
          "lang": "python",
          "source": "\nconst myInput = document.getElementById(\"myInput\");\n\nmyInput.addEventListener(\"blur\", function() {\n  // Perform some action when the input loses focus\n});",
          "index": 6
        },
        {
          "type": "text",
          "text": "\n\nNote that you would replace `// Perform some action when the input loses focus` with your actual code.\n\nSource: https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener"
        }
      ],
      "creationTime": "2023-03-21T06:11:23.248"
    },
    {
      "fromID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
      "toID": "1",
      "blocks": [
        {
          "type": "text",
          "text": "In flutter what is the meaning of the late keyword?"
        }
      ],
      "creationTime": "2023-03-21T06:25:50.160"
    },
    {
      "fromID": "1",
      "toID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
      "blocks": [
        {
          "type": "text",
          "text": "In Flutter, the `late` keyword is used to declare a non-nullable variable that will be initialized at a later point in time, but before it's accessed. Once the variable is set, it cannot be changed. If it's accessed before being initialized, a runtime error will occur. \n\nSource: https://dart.dev/guides/language/language-tour#late-variables"
        }
      ],
      "creationTime": "2023-03-21T06:25:56.517"
    },
    {
      "fromID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
      "toID": "1",
      "blocks": [
        {
          "type": "text",
          "text": "In flutter how does one part of the app trigger a rebuild in a different part of the application?"
        }
      ],
      "creationTime": "2023-03-21T06:50:12.086"
    },
    {
      "fromID": "1",
      "toID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
      "blocks": [
        {
          "type": "text",
          "text": "In Flutter, if we want one part of the app to trigger a rebuild in a different part of the application, we can make use of Flutter's InheritedWidget concept. An InheritedWidget is a way to propagate values down the tree and rebuild all or part of the tree if that value changes. By marking a widget as an InheritedWidget, any child widgets that depend on it will have their build method called when the value changes, allowing them to update their UI.\n\nTo use the InheritedWidget, we can create a data model class that extends `InheritedWidget`. This class will hold the data that we want to propagate throughout the app. Whenever the data changes, we can call `setState()` to rebuild the widget tree, which in turn will rebuild all of the child widgets. \n\nTo learn more about InheritedWidget in Flutter, you can refer to the official Flutter documentation available at https://flutter.dev/docs/development/ui/widgets/inheritance"
        }
      ],
      "creationTime": "2023-03-21T06:50:30.564"
    }
  ]
}
	{
	"title": "What is a changenotifier class in dart?",
	"creationTime": "2023-03-20T15:46:07.385",
	"messages": [
	{
	"fromID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
	"toID": "1",
	"blocks": [
	{
	"type": "text",
	"text": "What is a changenotifier class in dart?"
	}
	],
	"creationTime": "2023-03-20T15:46:22.691"
	},
	{
	"fromID": "1",
	"toID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
	"blocks": [
	{
	"type": "text",
	"text": "A changenotifier class in Dart is a class that extends the `ChangeNotifier` class from the Flutter framework. The `ChangeNotifier` class provides an implementation of the `Listenable` interface, which can be used to inform registered listeners of any changes to the state of an object. \n\nSource: https://api.flutter.dev/flutter/foundation/ChangeNotifier-class.html"
	}
	],
	"creationTime": "2023-03-20T15:46:37.833"
	},
	{
	"fromID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
	"toID": "1",
	"blocks": [
	{
	"type": "text",
	"text": "What is a MultiProvider in flutter?"
	}
	],
	"creationTime": "2023-03-20T16:18:28.240"
	},
	{
	"fromID": "1",
	"toID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
	"blocks": [
	{
	"type": "text",
	"text": "In Flutter, there is no concept called MultiProvider by default. However, MultiProvider is a common package in the Flutter community that allows the combination of multiple providers and a cleaner and more organized dependency injection. MultiProvider is part of the Provider state management package, which is commonly used in Flutter applications. \n\nSource: https://pub.dev/packages/provider"
	}
	],
	"creationTime": "2023-03-20T16:18:36.185"
	},
	{
	"fromID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
	"toID": "1",
	"blocks": [
	{
	"type": "text",
	"text": "In flutter what's the difference between a stateless and stateful widget?"
	}
	],
	"creationTime": "2023-03-20T16:41:58.812"
	},
	{
	"fromID": "1",
	"toID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
	"blocks": [
	{
	"type": "text",
	"text": "In Flutter, a stateless widget is a widget that does not change its properties once it is built. A stateless widget is useful when the part of the user interface you are describing doesn’t depend on anything other than the initial configuration data provided to the widget.\n\nOn the other hand, a stateful widget is a widget that can change its properties over time based on user interactions or other factors. Stateful widgets are useful when you need to capture user input, display changes in real-time, or handle animations, for example.\n\nYou can learn more about stateless and stateful widgets in the official Flutter documentation: https://flutter.dev/docs/development/ui/widgets-intro#stateless-widgets"
	}
	],
	"creationTime": "2023-03-20T16:42:10.603"
	},
	{
	"fromID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
	"toID": "1",
	"blocks": [
	{
	"type": "text",
	"text": "In flutter how would you create a statefulwidget to store user preferences using the shared_preferences package?"
	}
	],
	"creationTime": "2023-03-20T16:43:28.510"
	},
	{
	"fromID": "1",
	"toID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
	"blocks": [
	{
	"type": "text",
	"text": "To create a `StatefulWidget` to store user preferences in Flutter using the `shared_preferences` package, you can follow these steps:\n\n1. Add the `shared_preferences` package dependency to your app's `pubspec.yaml` file.\n\n2. Import the `shared_preferences` package in your code:"
	},
	{
	"type": "code",
	"lang": "python",
	"source": "\n import 'package:shared_preferences/shared_preferences.dart';",
	"index": 0
	},
	{
	"type": "text",
	"text": "\n\n3. Create a StatefulWidget class that will hold your app preferences:"
	},
	{
	"type": "code",
	"lang": "python",
	"source": "\n class MyAppPreferences extends StatefulWidget {\n @override\n _MyAppPreferencesState createState() => _MyAppPreferencesState();\n }",
	"index": 0
	},
	{
	"type": "text",
	"text": "\n\n4. Create a State class that will hold your preferences data and manage its lifecycle:"
	},
	{
	"type": "code",
	"lang": "python",
	"source": "\n class _MyAppPreferencesState extends State<MyAppPreferences> {\n SharedPreferences prefs;\n \n @override\n void initState() {\n super.initState();\n SharedPreferences.getInstance().then((value) {\n setState(() {\n prefs = value;\n });\n });\n }\n\n @override\n Widget build(BuildContext context) {\n return Container(); // This is where you would return your app's main UI component\n }\n }",
	"index": 0
	},
	{
	"type": "text",
	"text": "\n\n5. Use the `SharedPreferences` instance to get and set your preference values wherever you need them in your app. Here are some example functions:"
	},
	{
	"type": "code",
	"lang": "python",
	"source": "\n void savePreference(String key, String value) async {\n await prefs.setString(key, value);\n }\n\n String loadPreference(String key) {\n return prefs.getString(key);\n }",
	"index": 0
	},
	{
	"type": "text",
	"text": "\n\nReferences:\n- Flutter documentation on `shared_preferences`: https://pub.dev/packages/shared_preferences\n- Dart documentation on how to use Future and async functions: https://dart.dev/codelabs/async-await"
	}
	],
	"creationTime": "2023-03-20T16:43:50.490"
	},
	{
	"fromID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
	"toID": "1",
	"blocks": [
	{
	"type": "text",
	"text": "What is a FutureBuilder in flutter?"
	}
	],
	"creationTime": "2023-03-20T18:11:02.192"
	},
	{
	"fromID": "1",
	"toID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
	"blocks": [
	{
	"type": "text",
	"text": "A `FutureBuilder` in Flutter is a widget that builds itself based on the latest snapshot of interaction with a `Future`. It is used to represent the moment when the future completes, and the data is available, by populating the UI elements based on the state of the `Future`. \n\nSource: https://api.flutter.dev/flutter/widgets/FutureBuilder-class.html"
	}
	],
	"creationTime": "2023-03-20T18:11:12.115"
	},
	{
	"fromID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
	"toID": "1",
	"blocks": [
	{
	"type": "text",
	"text": "In Flutter what is a TextEditingController?"
	}
	],
	"creationTime": "2023-03-20T18:14:02.936"
	},
	{
	"fromID": "1",
	"toID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
	"blocks": [
	{
	"type": "text",
	"text": "In Flutter, a TextEditingController is a class that allows you to control and manipulate a text input field from a TextField widget. It is used to retrieve the value entered by the user and for programmatic manipulation of the text field. You can use methods like `textEditingValue`, `clear()`, `copy()`, `cut()`, `paste()`, `selectAll()`, `selection`, `text`, etc. to manipulate the text field programmatically.\n\nSource: https://api.flutter.dev/flutter/widgets/TextEditingController-class.html"
	}
	],
	"creationTime": "2023-03-20T18:14:13.821"
	},
	{
	"fromID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
	"toID": "1",
	"blocks": [
	{
	"type": "text",
	"text": "How do you use a TextEditingController to set the initial text in a text field?"
	}
	],
	"creationTime": "2023-03-21T05:57:35.472"
	},
	{
	"fromID": "1",
	"toID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
	"blocks": [
	{
	"type": "text",
	"text": "To set the initial text in a text field using a `TextEditingController` in Flutter, you can call the `text` property on the controller and pass in the desired text to display. For example, if you have a `TextEditingController` called `myController`, you can set the initial text of a `TextField` widget by doing:"
	},
	{
	"type": "code",
	"lang": "python",
	"source": "\nTextField(\n controller: myController,\n decoration: InputDecoration(\n labelText: 'Enter text',\n ),\n),",
	"index": 4
	},
	{
	"type": "text",
	"text": "\nAnd then in the `initState()` method of your widget, you can use `myController.text = \"Initial Text\"` to set the text that will be initially displayed in the text field.\n\nSource: https://flutter.dev/docs/cookbook/forms/text-field-changes"
	}
	],
	"creationTime": "2023-03-21T05:57:48.344"
	},
	{
	"fromID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
	"toID": "1",
	"blocks": [
	{
	"type": "text",
	"text": "How would you initialize a text form field with sharedpreferences"
	}
	],
	"creationTime": "2023-03-21T05:59:55.138"
	},
	{
	"fromID": "1",
	"toID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
	"blocks": [
	{
	"type": "text",
	"text": "In Android development, you can initialize a text form field with SharedPreferences by following these steps:\n1. Retrieve the SharedPreferences object using the `getSharedPreferences()` method.\n2. Get the value of the text field from SharedPreferences using the `getString()` method. You can also provide a default value in case there is no value stored for this key.\n3. Set the value of the text form field using the `setText()` method.\n\nHere's an example code snippet:"
	},
	{
	"type": "code",
	"lang": "python",
	"source": "\n// Retrieve the SharedPreferences object\nSharedPreferences sharedPreferences = getSharedPreferences(\"MyPrefs\", MODE_PRIVATE);\n\n// Get the value of the text field from SharedPreferences\nString textFieldValue = sharedPreferences.getString(\"textFieldKey\", \"\");\n\n// Set the value of the text form field\nEditText textField = findViewById(R.id.text_field);\ntextField.setText(textFieldValue);",
	"index": 5
	},
	{
	"type": "text",
	"text": "\n\nSource: https://developer.android.com/training/data-storage/shared-preferences"
	}
	],
	"creationTime": "2023-03-21T06:00:08.031"
	},
	{
	"fromID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
	"toID": "1",
	"blocks": [
	{
	"type": "text",
	"text": "With a text editing controller how do you respond to text changing?"
	}
	],
	"creationTime": "2023-03-21T06:10:30.210"
	},
	{
	"fromID": "1",
	"toID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
	"blocks": [
	{
	"type": "text",
	"text": "To respond to changes in text in a text editing controller, you can take advantage of the callback functions provided by the controller. In particular, you can use the on_change property to specify a function that will be called whenever the text in the controller changes. The function will receive as input the new value of the text, which can be used to perform any necessary actions. You can refer to the documentation for the specific text editing controller that you are using for more information on the on_change property and how to use it."
	}
	],
	"creationTime": "2023-03-21T06:10:38.146"
	},
	{
	"fromID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
	"toID": "1",
	"blocks": [
	{
	"type": "text",
	"text": "How would you perform some action when a text form field loses focus?"
	}
	],
	"creationTime": "2023-03-21T06:11:13.294"
	},
	{
	"fromID": "1",
	"toID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
	"blocks": [
	{
	"type": "text",
	"text": "To perform an action when a text form field loses focus, you would use an event listener called \"blur.\" \n\nIn JavaScript, you can attach an event listener to an element using the `addEventListener()` function. For example, the following code would add a `blur` event listener to an `input` element with the ID `myInput`:"
	},
	{
	"type": "code",
	"lang": "python",
	"source": "\nconst myInput = document.getElementById(\"myInput\");\n\nmyInput.addEventListener(\"blur\", function() {\n // Perform some action when the input loses focus\n});",
	"index": 6
	},
	{
	"type": "text",
	"text": "\n\nNote that you would replace `// Perform some action when the input loses focus` with your actual code.\n\nSource: https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener"
	}
	],
	"creationTime": "2023-03-21T06:11:23.248"
	},
	{
	"fromID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
	"toID": "1",
	"blocks": [
	{
	"type": "text",
	"text": "In flutter what is the meaning of the late keyword?"
	}
	],
	"creationTime": "2023-03-21T06:25:50.160"
	},
	{
	"fromID": "1",
	"toID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
	"blocks": [
	{
	"type": "text",
	"text": "In Flutter, the `late` keyword is used to declare a non-nullable variable that will be initialized at a later point in time, but before it's accessed. Once the variable is set, it cannot be changed. If it's accessed before being initialized, a runtime error will occur. \n\nSource: https://dart.dev/guides/language/language-tour#late-variables"
	}
	],
	"creationTime": "2023-03-21T06:25:56.517"
	},
	{
	"fromID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
	"toID": "1",
	"blocks": [
	{
	"type": "text",
	"text": "In flutter how does one part of the app trigger a rebuild in a different part of the application?"
	}
	],
	"creationTime": "2023-03-21T06:50:12.086"
	},
	{
	"fromID": "1",
	"toID": "0lShIJyQbEYatxFxW6jaicnzwDb2",
	"blocks": [
	{
	"type": "text",
	"text": "In Flutter, if we want one part of the app to trigger a rebuild in a different part of the application, we can make use of Flutter's InheritedWidget concept. An InheritedWidget is a way to propagate values down the tree and rebuild all or part of the tree if that value changes. By marking a widget as an InheritedWidget, any child widgets that depend on it will have their build method called when the value changes, allowing them to update their UI.\n\nTo use the InheritedWidget, we can create a data model class that extends `InheritedWidget`. This class will hold the data that we want to propagate throughout the app. Whenever the data changes, we can call `setState()` to rebuild the widget tree, which in turn will rebuild all of the child widgets. \n\nTo learn more about InheritedWidget in Flutter, you can refer to the official Flutter documentation available at https://flutter.dev/docs/development/ui/widgets/inheritance"
	}
	],
	"creationTime": "2023-03-21T06:50:30.564"
	}
	]
	}