The typedArray.map() is an inbuilt function in JavaScript which is used to create a new typedArray with the result of a provided function on each element of the given typedArray.
Syntax:
typedArray.map(callback)
Parameters: It accepts a parameter callback function which accept some parameter which are specified below-
- currentValue: It is the current element which is being processed in the typedArray.
- index: It is the index of the current element which is being processed in the typedArray.
- array: It is the typedArray which is being called.
Return value: It returns a new typedArray with the result of a provided function on each element of the given typedArray.
Example 1:
javascript
// Creating a typedArray with some elements const A = new Uint8Array([4, 9, 16, 25, 36]); // Calling map() function with the parameter // Math.sqrt function which find square root // of the typedArray's elements const B = A.map(Math.sqrt); // Printing the result of the function console.log(B); |
Output:
2,3,4,5,6
Example 2:
javascript
// Creating a typedArray with some elements var A = new Uint8Array([1, 2, 3, 4, 5, 6]); // Calling map() function var B = A.map(function(a) { return a * 5; }); // Returning the results console.log(B); |
Output:
5,10,15,20,25,30
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