parseInt

INFO

This function is only available in es-toolkit/compat for compatibility reasons. It either has alternative native JavaScript APIs or isn’t fully optimized yet.

When imported from es-toolkit/compat, it behaves exactly like lodash and provides the same functionalities, as detailed here.

Converts string to an integer of the specified radix. If radix is undefined or 0, a radix of 10 is used unless string is a hexadecimal, in which case a radix of 16 is used.

Signature

function parseInt(string: string, radix?: number, guard?: unknown): number;

Parameters

• string (string): The string to convert to an integer.
• radix (number, Optional): The radix to use when converting the string to an integer. Defaults to 0.
• guard (unknown, Optional): Enables use as an iteratee for methods like Array#map.

Returns

(number): The converted integer.

Examples

import { parseInt } from 'es-toolkit/compat';

parseInt('08'); // => 8
parseInt('0x20'); // => 32

parseInt('08', 10); // => 8
parseInt('0x20', 16); // => 32

['6', '08', '10'].map(parseInt); // => [6, 8, 10]