Add Property To Object JavaScript
Last Updated : Mar 11, 2024
IN - JavaScript | Written & Updated By - Ashish
In this article we will show you the solution of add property to object JavaScript, properties define the values of JavaScript objects. A JavaScript object has many properties that are organized in an unorganized manner.
Most properties can be added, removed, or changed, but some are fixed and cannot be changed.
Property changes, deletions, and dynamic additions can be made to an object after it has been created. In JavaScript, properties define an object's characteristics.
There are a number of ways to add properties to an object in JavaScript, including the dot notation, the bracket [] notation, the defineProperty() method, the spread operator, and Object. assign ().
A JavaScript object is made up of unordered properties which define the object's properties.
These are essentially key-value pairs. The behavior of object names and properties is case-sensitive, just like JavaScript variables.
The defineProperty() method is offered by a JavaScript object class and can be employed to add a property to that of an object, change an
existing object, or change an existing JavaScript object.
Step By Step Guide On Add Property To Object JavaScript :-
<!DOCTYPE html>
<html>
<body>
<p style="font-size: 30px; color: green;" ;>
TalkersCode </p>
<p id="add"></p>
<script>
var a = "string1";
var b = "string2";
var object1 = { firstname: "Romy",
lastname: "Kumari" };
object1.a = "first property";
object1.b = "Second Property";
document.getElementById("add").innerHTML =
"Added property are : " + object1.a +
" and " + object1.b;
</script>
</body>
</html>
- Writing <HTML>, which informs the browser of the HTML version we're using, is the first step. Tags are the foundation of HTML documents.
- To describe the heading of the project, use the head> tag. There are two types of titles: open titles and open titles/titles. When it includes a complete URL or a path that is related to the currently-viewed web page, it is referred to as a step-by-step style sheet.
- The <body> tag, which houses the content of the website, comes next. This is where all of the website's content is written.
- We then added the script> tag. The file we used or the code is explained in the script tag along with the javascript google API run.
- JavaScript includes a method called assign (). A new value can be added or assigned to an existing object using the assign() method or a new object can be created using the method without affecting a value about an existing object.
- To add a property or its value to a variable, use the bracket operator.Obj. a is not the same as obj[a].
- After that, after closing all tags, </script></body></html> but also code should be executed.
Conclusion :-
Unordered properties that specify an object's properties make up a JavaScript object.
In essence, these are key-value pairs. Like JavaScript variables, the behavior of object names & properties is case-sensitive.
I hope this article on add property to object JavaScript helps you and the steps and method mentioned above are easy to follow and implement.
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