The weakMap.set() is an inbuilt function in JavaScript which is used to set a new element with a particular key and value to a WeakMap object.
Syntax:
weakMap.set(key, value);
Parameters: It takes parameters “key” which is the key of the element which is to set to the WeakMap object and parameter “value” is the value of the element to set to the WeakMap object.
Return value: It returns the WeakMap object.
Code #1:
<script> // creating WeakMap() object const weakmap1 = new WeakMap(); // Creating some keys const key1 = {}; const key2 = {}; // Setting key and value to the object. weakmap1.set(key1, 'GeeksForGeeks'); weakmap1.set(key2, 'gfg'); // Returning the set values document.write(weakmap1.get(key1) +"<br>"); document.write(weakmap1.get(key2)); </script> |
Output:
GeeksForGeeks gfg
Code #2:
<script> // creating WeakMap() object const weakmap1 = new WeakMap(); // Creating some keys const key1 = {}; const key2 = {}; const key3 = {}; const key4 = {}; const key5 = {}; const key6 = {}; // Setting key and value to the object. weakmap1.set(key1, 'GeeksForGeeks'); weakmap1.set(key2, 'gfg'); weakmap1.set(key3, 'GfG is a cse portal'); weakmap1.set(key4, '12345'); weakmap1.set(key5, '@#$%'); weakmap1.set(key6, '1.34'); // Returning the set values document.write(weakmap1.get(key1) +"<br>"); document.write(weakmap1.get(key2) +"<br>"); document.write(weakmap1.get(key3) +"<br>"); document.write(weakmap1.get(key4) +"<br>"); document.write(weakmap1.get(key5) +"<br>"); document.write(weakmap1.get(key6)); </script> |
Output:
GeeksForGeeks gfg GfG is a cse portal 12345 @#$% 1.34
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