SetInterval creates delay after many rounds of execution

I have a problem with the implementation of setInterval. I have created a slider in which the setInterval processes a function every few seconds. I have noticed after few minutes and few rounds of the execution of setInterval an additional delay is incurring. Please suggest what seems to be the problem here? $(document).ready(function() { var totalItems = $('.sliderItem', '#slider').l


我有一个执行setInterval的问题。 我创建了一个滑块,其中setInterval每隔几秒处理一个函数。 在几分钟和几轮执行setInterval之后,我注意到了一个额外的延迟。 请提出这里似乎是什么问题? $(document).ready(function() { var totalItems = $('.sliderItem', '#slider').length; var currentIndex = $('.itemActive').index() + 1; var slideTime = 3000; function goNext (e) { $('.slide

Include javascript file in node.js script

Is it possible to include a javascript file in nodejs script to be able to test it with command "node script.js" ? //Edited i have generated a browserify file using "browserify script.js > file.js", my nodejs script does just a "console.log()", i need now to test my file.js that i have generated with browserify using node.js not the browser, this is my code that


是否可以在nodejs脚本中包含JavaScript文件以便能够使用命令“node script.js”对其进行测试? //编辑我已经使用“browserify script.js> file.js”生成了一个browserify文件,我的nodejs脚本只做了一个“console.log()”,我现在需要测试我用browserify生成的file.js使用node.js而不是浏览器,这是我想从node.js脚本测试的代码: executeGeneratePNG= function(sBlob) { var _generatePNG = function (){ (function e(t,n,r){f

Node says Jade has no method "renderFile", why?

I installed jade (npm install jade) and went over to their github page to grab some examples. This is what I wanted to execute: code.jade: - var title = "Things" h1= title ul#users - each user, name in users - if (user.isA == "ferret") li(class: 'user-' + name) #{name} is just a ferret - else li(class: 'user-' + name) #{name} #{} code.js: var jade = require('


我安装了翡翠(npm install jade)并转到他们的github页面来获取一些例子。 这是我想要执行的: code.jade: - var title = "Things" h1= title ul#users - each user, name in users - if (user.isA == "ferret") li(class: 'user-' + name) #{name} is just a ferret - else li(class: 'user-' + name) #{name} #{} code.js: var jade = require('jade'); var options = { locals:

module.exports that include all functions in a single line

This is a follow-up question to In Node.js, how do I "include" functions from my other files? I would like to include an external js file that contains common functions for a node.js app. From one of the answers in In Node.js, how do I "include" functions from my other files?, this can be done by // tools.js // ======== module.exports = { foo: function () { // whate


这是在Node.js中的后续问题,我如何从其他文件中“包含”函数? 我想包含一个包含node.js应用程序的常用函数的外部js文件。 从In Node.js中的答案之一,我如何从我的其他文件中“包含”函数?这可以通过 // tools.js // ======== module.exports = { foo: function () { // whatever }, bar: function () { // whatever } }; var zemba = function () { } 导出每个功能都很不方便。 是否可以有一个出口所有

How do I load my script into the node.js REPL?

I have a script foo.js that contains some functions I want to play with in the REPL. Is there a way to have node execute my script and then jump into a REPL with all the declared globals, like I can with python -i or ghci foo.hs ? There is still nothing built-in to provide the exact functionality you describe. However, an alternative to using require it to use the .load command within

如何将我的脚本加载到node.js REPL中?

我有一个脚本foo.js ,其中包含一些我想在REPL中玩的功能。 有没有办法让节点执行我的脚本,然后用所有已声明的全局变量跳到REPL中,就像我可以用python -i foo.py或ghci foo.hs ? 仍然没有提供您描述的确切功能的内置内容。 但是,使用替代方法require它在REPL中使用.load命令,如下所示: .load foo.js 它逐行加载文件,就像在REPL中键入它一样。 与require不同,它会使用您加载的命令污染REPL历史记录。 但是,它具

what is "strict mode" and how is it used?

I've been looking over the JavaScript reference on the Mozilla Developer Network, and I came across something called "strict mode" . I read it over and I'm having trouble understanding what it does. Can someone briefly explain (in general) what its purpose is and how it is useful? Its main purpose is to do more checking. Just add "use strict"; at the top of your


我一直在浏览Mozilla开发者网络上的JavaScript参考,并且我遇到了一种叫做"strict mode"东西。 我把它读完了,我很难理解它的功能。 有人可以简单地解释(一般)它的目的是什么以及它的用途如何? 它的主要目的是做更多的检查。 只需添加"use strict"; 在代码的顶部,在其他任何事情之前。 例如, blah = 33; 是有效的JavaScript。 这意味着你创建一个完全全局变量blah 。 但是在严格模式下它

Exporting a module Node.js

This question already has an answer here: In Node.js, how do I “include” functions from my other files? 20 answers Only requiring a module A somewhere (in module B, for example) doesn't make the functions of A accessible in other modules. Normally, they're not even accessible in module B. To access functions (or any values) from another module, that other module has to export them


这个问题在这里已经有了答案: 在Node.js中,我如何从其他文件“包含”功能? 20个答案 只需要一个模块A(例如,在模块B中)不会使A的功能在其他模块中可访问。 通常情况下,他们甚至无法在模块B中访问。 要从另一个模块访问函数(或任何值),该其他模块必须导出它们。 以下方案不起作用: // module-a.js function firstFunction () {} function secondFunction () {} // module-b.js var helper_handleSentences = req

NodeJS alternative to PHP includes?

This question already has an answer here: In Node.js, how do I “include” functions from my other files? 20 answers If you want to load only exported objects from external file, you can use require function. var imported = require('your-module'); If you want to execute external Javascript file directly into your global scope (similar to PHP's include ), then you should use eval . eval(


这个问题在这里已经有了答案: 在Node.js中,我如何从其他文件“包含”功能? 20个答案 如果只想从外部文件加载导出的对象,则可以使用require函数。 var imported = require('your-module'); 如果你想直接在你的全局范围内执行外部Javascript文件(类似于PHP的include ),那么你应该使用eval 。 eval(require('fs').readFileSync('your-module\index.js') + '');

How do I call .js from another .js file?

This question already has an answer here: In Node.js, how do I “include” functions from my other files? 20 answers You can create a module, and require it the following way. File A: sql.js var a = function a(){ }; module.exports.a = a; Files B, C, D: var sql = require("./sql"); sql.a(); require . for example var sql = require('sql.js'); you need in the sql.js to return a


这个问题在这里已经有了答案: 在Node.js中,我如何从其他文件“包含”功能? 20个答案 您可以创建一个模块,并按照以下方式进行要求。 文件A:sql.js var a = function a(){ }; module.exports.a = a; 文件B,C,D: var sql = require("./sql"); sql.a(); require 。 例如var sql = require('sql.js'); 你需要在sql.js中以module.exports = myobj结尾返回一个对象; 例: module.exports = { sql_co

This appears to be a class on a Javascript event. What is it?

I just ran across some jQuery that looks like this: $('.add-row').live('click.add', function() { // do something } This appears to be binding to the 'click.add' event. I use custom events myself and think they're awesome, but doing git grep on our code base doesn't reveal any place where a custom event called click.add is triggered, and in any case, this behavior is trigge

这似乎是一个Javascript事件的类。 它是什么?

我只是碰到了一些看起来像这样的jQuery: $('.add-row').live('click.add', function() { // do something } 这似乎是绑定到'click.add'事件。 我自己使用自定义事件并认为它们很棒,但是在我们的代码库上执行git grep并不会显示任何触发了名为click.add的自定义事件的地方,并且在任何情况下,此行为都是由正常点击。 我也没有在HTML中的任何地方看到.add类。 我不认为你可以在Javascript事件上有类。 任何