en.javascript.info/1-js/06-advanced-functions/09-call-apply-decorators/02-delay/task.md

importance: 5

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Delaying decorator

Create a decorator delay(f, ms) that delays each call of f by ms milliseconds.

For instance:

function f(x) {
  alert(x);
}

// create wrappers
let f1000 = delay(f, 1000);
let f1500 = delay(f, 1500);

f1000("test"); // shows "test" after 1000ms
f1500("test"); // shows "test" after 1500ms

In other words, delay(f, ms) returns a "delayed by ms" variant of f.

In the code above, f is a function of a single argument, but your solution should pass all arguments and the context this.