how to use the parseint function from the lodash library in typescript

To use the parseInt function from the Lodash library in TypeScript, you can first install the Lodash library via npm using the following command:

index.ts
npm install --save lodash
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After installing Lodash, you can import the parseInt function and its type declaration from the Lodash library like this:

index.ts
import { parseInt } from 'lodash';
import { Primitive } from 'lodash/fp';

// Example usage
const stringNumber = '42';
const radix = 10;
const result: Primitive = parseInt(stringNumber, radix);
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In the code example above, the Primitive type from the Lodash/fp module is used as the return type of the parseInt function. This is because Primitive is a union type that includes all primitive types that are returned by the parseInt function, including string, number, and NaN.

With the Lodash parseInt function now available in your TypeScript project, you can parse strings into numbers with greater reliability and flexibility than with the built-in parseInt function.