Learning React

errors and solutions.js

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To add eslint :-
  1. npm install -g eslint
  2. add .eslintsrc to main project directory of react-native project
  3. add this code to .eslintsrc - 
    {
      "extends": "rallycoding"
    }
  4. npm install --save-dev eslint-config-rallycoding
  5. In sublime text install package "Sublime Linter" and "sublimelinter-contrib-eslint"
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To use this keyword in try or catch block :- 
  1. use another variable like - var that = this; in function where u have try or catch block or any overridden code block.
  2. use 'that' instead of this everywhere in block where u want to use 'this' keyword
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Error:- no function like:- signInWithEmailAndPassword when using this from firebase library in react- native project
Solution:- Make sure to bind the component function when you are using it.
  Example Code Snippet:- 
    firebase.auth().signInWithEmailAndPassword(email, password)
    .then(this.onLoginSuccess.bind(this)); -- this binding is necessary at the end of code
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