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

Here is an example of how to use the after function from the Underscore library in TypeScript:

index.ts
import * as _ from 'underscore';

function func1() {
  console.log('Function 1');
}

function func2() {
  console.log('Function 2');
}

// The `after` function will create a new function that will be called after it has been called a certain number of times
const newFunc = _.after(2, () => {
  console.log('After function has been called twice');
});

// Use the `function composition` technique from Javascript to create a new function that will call the two original functions
const composedFunc = _.compose(func1, func2, newFunc);

// Call the composed function
composedFunc();
582 chars
21 lines

In this example, we are using the after function to create a new function newFunc that will be called after it has been called twice. We are then using the function composition technique to create a new function composedFunc that will call func1, func2, and newFunc in that order.

By using import * as _ from 'underscore';, we are importing the Underscore library and giving it the name _. This allows us to access all of the functions in the library using _.

gistlibby LogSnag