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

To use the isnull function from the Lodash library in TypeScript, you can follow these steps:

1. First, install the Lodash library and its TypeScript type definitions using npm:

index.ts
npm install lodash @types/lodash
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2. Import the isnull function from Lodash:

index.ts
import { isNull } from 'lodash';
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3. Use the isNull() function in your TypeScript code:

index.ts
const myVar = null;
console.log(isNull(myVar)); // true
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Note that because we installed the @types/lodash package, TypeScript can now detect the types of the Lodash functions and provide type checking and IntelliSense for them.