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  • License MIT

Wait for a condition to be true

Package Exports

  • p-wait-for

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (p-wait-for) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

p-wait-for Build Status

Wait for a condition to be true

Can be useful for polling.

Install

$ npm install --save p-wait-for

Usage

const pWaitFor = require('p-wait-for');
const pathExists = require('path-exists');

pWaitFor(() => pathExists('unicorn.png')).then(() => {
    console.log('Yay! The file now exists.');
})

API

pWaitFor(condition, [interval])

Returns a Promise that resolves when condition returns true. Rejects if condition throws or returns a Promise that rejects.

condition

Type: Function

Expected to return a boolean or a Promise for a boolean.

interval

Type: number
Default: 20

Number of milliseconds to wait before retrying condition.

  • p-whilst - Calls a function repeatedly while a condition returns true and then resolves the promise
  • More…

License

MIT © Sindre Sorhus