Blog

Syntax Of Lodash indexOf method

_.indexOf(array, value, [fromIndex=0])

Gets the Lodash indexOf method at which the first occurrence of value is found in the array using SameValueZero for equality comparisons. If fromIndex is negative, it’s used as the offset from the end of the array.

Arguments

• array (Array) − The array to inspect.
• value (*) − The values to search for.
• [fromIndex=0] (number) − The index to search from.

Output

• (number) − Returns the index of the matched value, else -1.

Example

var _ = require('lodash');
var list = [1, 2, 3, 2, 5, 2];

var result = _.indexOf(list,2)
console.log(result);

var result = _.indexOf(list, 2, 3)
console.log(result);

Save the above program in tester.js. Run the following command to execute this program.

Command

\>node tester.js

Output

1
3

Next Topic – Click Here