durationHandler

Create a delayed execution function that executes a specified function after a specified time.

API

durationHandler

Return

Argument	Description	Type
Function	Returns a function that accepts delay time parameter	(duration: number) => Promise<U>

Parameters

Parameter	Description	Type	Default
handler	Function to execute	Function	Required
...params	Parameters to pass to function	T[]	Required

Example

Basic Usage

import { durationHandler } from 'ranuts';

const delayedFn = durationHandler((name) => {
  console.log('Hello', name);
  return 'done';
}, 'World');

// Execute after 1 second
const result = await delayedFn(1000);
console.log(result); // 'done'

Delayed API Request

import { durationHandler } from 'ranuts';

const delayedRequest = durationHandler(async (url) => {
  const response = await fetch(url);
  return response.json();
}, 'https://api.example.com/data');

// Execute request after 2 seconds
const data = await delayedRequest(2000);
console.log(data);

Use with networkSpeed

import { durationHandler, imageRequest } from 'ranuts';

// Create delayed image request function
const delayedImageRequest = durationHandler(imageRequest, 'https://example.com/test.jpg');

// Execute after 3 seconds
const latency = await delayedImageRequest(3000);
console.log('Latency:', latency, 'ms');

Notes

1. Curried function: Returns a function that accepts delay time parameter, supports functional programming.
2. Async support: Supports async functions, will wait for function execution to complete.
3. Error handling: If function execution fails, Promise will reject.
4. Use case: Commonly used for delayed execution, scheduled tasks, network testing, etc.