how to use the get function from the underscore library in typescript

To use the get function from the underscore library in TypeScript, first install the @types/underscore package using npm:

npm install --save-dev @types/underscore
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Once installed, you can import the get function from the underscore module and use it in your TypeScript code as follows:

index.ts
import { get } from 'underscore';

interface Example {
  nestedObj?: {
    property: string;
  };
}

const example: Example = { nestedObj: { property: 'example' } };

const propertyValue = get(example, 'nestedObj.property');
console.log(propertyValue); // Output: 'example'
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Alternatively, if you want to use the get function from underscore without installing the types for it, you can declare the function signature yourself using generics like this:

index.ts
declare function get<T, K extends keyof T>(obj: T, key: K): T[K];
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With this declaration, you can use the get function in your TypeScript code just like in the previous example. However, note that you won't get any type checking or auto-completion for the get function arguments and return value without installing the correct types.