Created
June 15, 2023 13:54
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Use JSON object in simplofied way to find if the object have required properties using hasOwn function of jquery
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| <html> | |
| <head> | |
| <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.4/jquery.min.js"></script> | |
| </head> | |
| <body> | |
| <form> | |
| <input type="text" placeholder="Enter First Name" id="fname" readonly> | |
| </br> | |
| </br> | |
| <input type="text" placeholder="Enter Last Name" id="lname" readonly> | |
| </br> | |
| </br> | |
| <select id="state"> | |
| <option value="">--Select State--</option> | |
| <option value="Rajasthan">Rajasthan</option> | |
| </select> | |
| </form> | |
| <script> | |
| $(document).ready(function() { | |
| let text = '{ "employees" : { "firstName":"John" , "lastName":"Doe" }, "location" : ""}'; | |
| const obj = JSON.parse(text); | |
| if (Object.hasOwn(obj.employees, "firstName")) { | |
| $("#fname").val(obj.employees.firstName) | |
| $("#fname").prop('readonly', false); | |
| console.log(obj.employees.firstName); | |
| } else { | |
| console.log("No First name found"); | |
| } | |
| if (Object.hasOwn(obj.employees, "lastName")) { | |
| $("#lname").val(obj.employees.lastName) | |
| console.log(obj.employees.lastName); | |
| } else { | |
| console.log("No Last name found"); | |
| } | |
| if (!Object.hasOwn(obj, "state")) { | |
| $("#state").prop("disabled", true); | |
| } else { | |
| $("select#state option[value='" + obj.state + "']").attr("selected", true); | |
| $("#state").prop("disabled", false); | |
| } | |
| }) | |
| </script> | |
| </body> | |
| </html> |
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