timers-ext

2019-01-12 admin

timers-ext是什么

什么是timers-ext,Timers extensions

timers-ext使用教程帮助文档

Build status Windows status Transpilation status npm version

timers-ext

Timers extensions

Installation

$ npm install timers-ext

To port it to Browser or any other (non CJS) environment, use your favorite CJS bundler. No favorite yet? Try: Browserify, Webmake or Webpack

API

MAX*TIMEOUT *(timers-ext/max-timeout)_

Maximum possible timeout value in milliseconds. It equals to maximum positive value for 32bit signed integer, so 2³¹ (2147483647), which makes it around 24.9 days

delay(fn[, timeout]) (timers-ext/delay)

Returns function which when invoked will call fn function after specified timeout. If timeout is not provided nextTick propagation is used.

once(fn[, timeout]) (timers-ext/once)

Makes sure to execute fn function only once after a defined interval of time (debounce). If timeout is not provided nextTick propagation is used.

var nextTick = require("next-tick");
var logFoo = function() {
	console.log("foo");
};
var logFooOnce = require("timers-ext/once")(logFoo);

logFooOnce();
logFooOnce(); // ignored, logFoo will be logged only once
logFooOnce(); // ignored

nextTick(function() {
	logFooOnce(); // Invokes another log (as tick passed)
	logFooOnce(); // ignored
	logFooOnce(); // ignored
});

validTimeout(timeout) (timers-ext/valid-timeout)

Validates timeout value. For NaN resolved timeout 0 is returned. If timeout resolves to a number:

  • for timeout < 0 0 is returned
  • for 0 >= timeout <= MAX_TIMEOUT, timeout value is returned
  • for timeout > MAX_TIMEOUT exception is thrown

Tests

$ npm test

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文章标题:timers-ext

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