JavaScript typedArray.filter() with Example
Last Updated :
22 Dec, 2022
The Javascript typedArray.filter() is an inbuilt function in javascript that is used to form a new typedArray with the elements which satisfy the test implemented by the function provided.
Syntax:
typedarray.filter(callback)
Parameters: It takes the parameter “callback” function which checks each element of the typedArray satisfied by the condition provided. The callback function takes three parameters that are specified below-
- element: It is the value of the element.
- index: It is the index of the element.
- array: It is the array that is being traversed.
Return value: It returns a new typedarray with the elements that satisfy the test.
JavaScript example to show the working of this function:
Example 1: This example shows the use of the typedArray.filter() method in Javascript.
javascript
<script>
function isNegative(element, index, array)
{
return element < 0;
}
const A = new Int8Array([ -10, 20, -30, 40, -50 ]);
const B = new Int8Array([ 10, 20, -30, 40, -50 ]);
const C = new Int8Array([ -10, 20, -30, 40, 50 ]);
const D = new Int8Array([ -10, 20, 30, 40, -50 ]);
const a = A.filter(isNegative);
const b = B.filter(isNegative);
const c = C.filter(isNegative);
const d = D.filter(isNegative);
console.log(a);
console.log(b);
console.log(c);
console.log(d);
</script>
|
Output:
-10,-30,-50
-30,-50
-10,-30
-10,-50
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