JavaScript typedArray.find() with Example
Last Updated :
26 Dec, 2022
The Javascript typedArray.find() is an inbuilt function in JavaScript that is used to return a value in the typedArray, if the value satisfies the condition given in the function, otherwise, it returns undefined.
Syntax:
typedArray.find(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 value of the array if the elements satisfy the condition provided by the function, otherwise, it returns undefined.
JavaScript example to show the working of this function:
Example: This example shows the basic use of the typedArray.find() 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.find(isNegative);
const b = B.find(isNegative);
const c = C.find(isNegative);
const d = D.find(isNegative);
console.log(a);
console.log(b);
console.log(c);
console.log(d);
</script>
|
Output:
-10
-30
-10
undefined
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