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indexOf()

indexOf<T>(x): (arr) => number

Returns the first index at which a given element can be found in the array. Returns -1 otherwise.

Type Parameters​

• T

The type of array elements.

Parameters​

x​

T

The value to find in the array.

Returns​

Function

Parameters​

arr​

T[]

Returns​

number

Remarks​

pure function

Example​

import { indexOf } from '@accelint/core';

indexOf(3)([1, 2, 3, 4, 5]);
// 2