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

To use the isBoolean function from the Lodash library in TypeScript, you need to install the Lodash library by running the following command in your project directory:

npm install --save lodash
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Then, you can import the isBoolean function in your TypeScript file as follows:

index.ts
import { isBoolean } from 'lodash';
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To use the isBoolean function, you can call it with a value and it will return a boolean indicating whether the value is a boolean or not:

index.ts
const flag: boolean = isBoolean(true); // returns true
const num: number = 42;
const isValid: boolean = isBoolean(num); // returns false
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You can also use the function with type annotation to specify the types of the parameters and the return value:

index.ts
function processValue(value: any): void {
  if (isBoolean(value)) {
    // handle boolean value
  } else {
    // handle non-boolean value
  }
}
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In this example, the processValue function takes a parameter value of type any. The function checks whether the value is a boolean by calling the isBoolean function. If the value is a boolean, the function handles the boolean value, otherwise it handles the non-boolean value.

By using the isBoolean function from the Lodash library and type annotation, you can write type-safe and more efficient TypeScript code.