Javascript implementation of progress bar function based on timer

This article mainly introducesjavascriptimplementation of progress bar function based on timer. It briefly analyzes the function and usage of javascript timer and gives an example of progress bar function based on timer. Friends who are interested in JavaScript can refer to this article

The example in this article describes how JavaScript implements the progress bar function based on a timer. Share it with everyone for your reference, the details are as follows:

Timer in Javascript

windowThe method below the first linewindow. setInterval()Start the timer

1.setInterval(function(function),time(how often the function is executed, in milliseconds))

will repeatedly execute an item Operation

2.setTimeout is used to delay a period of time before performing an operation

setTimeout(function,time),setTimeout will not be repeated!

Stop the timer:

setTimeout corresponds to clearTimeout (object) Clear the set Tiemout object

setInterval corresponds is clearInterval(object) Clear the setInterval object

Gives a case:

When running the program, the The progress bar will load, and the loading speed is related to time!

Related recommendations:

Solution to problems related to weird ajaxFileUpload.js uploading files

javascript - Qiniu JS upload prompts that the specified space does not exist

javascript - How to initialize the uploader after clicking a button when uploading Qiniu js

The above is the detailed content of Javascript implementation of progress bar function based on timer. For more information, please follow other related articles on the PHP Chinese website!