TheDeveloperBlog.com

Home | Contact Us

C-Sharp | Java | Python | Swift | GO | WPF | Ruby | Scala | F# | JavaScript | SQL | PHP | Angular | HTML

JavaScript WeakMap set() Method

JavaScript WeakMap set() Method with example, clear() method, javascript weakmap methods, javascript weakmap set() method, javascript weakmap delete() method, javascript weakmap has() method, javascript weakmap get() method etc.

<< Back to JAVASCRIPT

JavaScript WeakMap set() method

The JavaScript WeakMap set() method is used to add or update an element to WeakMap object with the particular key-value pair. Each value must have a unique key (i.e. object).

Syntax

The set() method is represented by the following syntax:

weakMapObj.set(key,value)

Parameter

key - It represents the key to be added.

value - It represents the value to be added.

Return

The WeakMap object.

JavaScript WeakMap set() method example

Here, we will understand set() method through various examples.

Example 1

Let's see an example to add elements to WeakMap object.

<script>
var wm = new WeakWeakMap();
var obj1 = {};
var obj2 = {};
var obj3= {};
wm.set(obj1, "jQuery");
wm.set(obj2, "AngularJS");
wm.set(obj3,"Bootstrap");
document.writeln(wm.get(obj1)+"<br>");
document.writeln(wm.get(obj2)+"<br>");
document.writeln(wm.get(obj3));
</script>
Test it Now

Output:

jQuery
AngularJS
Bootstrap

Example 2

Let's see an example to add elements to WeakMap object in chainable form.

<script>
var wm = new WeakMap();
var obj1 = {};
var obj2 = {};
var obj3= {};
wm.set(obj1, "jQuery").set(obj2, "AngularJS").set(obj3,"Bootstrap");
document.writeln(wm.get(obj1)+"<br>");
document.writeln(wm.get(obj2)+"<br>");
document.writeln(wm.get(obj3));
</script>
Test it Now

Output:

jQuery
AngularJS
Bootstrap

Example 3

In this example, we will determine the result when different values are added to the same object.

<script>
var wm = new WeakMap();
var obj1 = {};
var obj2 = {};
wm.set(obj1, "jQuery");
wm.set(obj2, "AngularJS");
wm.set(obj2,"Bootstrap");
document.writeln(wm.get(obj1)+"<br>");
document.writeln(wm.get(obj2)+"<br>");
document.writeln(wm.get(obj2));
</script>
Test it Now

Output:

jQuery
Bootstrap
Bootstrap

Next TopicJavaScript WeakMap




Related Links:


Related Links

Adjectives Ado Ai Android Angular Antonyms Apache Articles Asp Autocad Automata Aws Azure Basic Binary Bitcoin Blockchain C Cassandra Change Coa Computer Control Cpp Create Creating C-Sharp Cyber Daa Data Dbms Deletion Devops Difference Discrete Es6 Ethical Examples Features Firebase Flutter Fs Git Go Hbase History Hive Hiveql How Html Idioms Insertion Installing Ios Java Joomla Js Kafka Kali Laravel Logical Machine Matlab Matrix Mongodb Mysql One Opencv Oracle Ordering Os Pandas Php Pig Pl Postgresql Powershell Prepositions Program Python React Ruby Scala Selecting Selenium Sentence Seo Sharepoint Software Spellings Spotting Spring Sql Sqlite Sqoop Svn Swift Synonyms Talend Testng Types Uml Unity Vbnet Verbal Webdriver What Wpf