How to use javascript to delete or clear all selected items

Function deleteAll (){Var all = document. getElementsByName ("checkname"); // obtain the selected content as an arrayIf (all = null | all. length = 1 ){Alert ("no order ");Return;} Else {Var idStr = ""; // defines the string of the id to be

Node debugging path ----- JSHint

The advantages of Node are no longer in the air, making it possible for javascript to unify the web Front and back. However, for new users, the server-side JS Code may not be as good as the client-side code for debugging and intuitive. Debugging of

One way to process 404 pages in the NodeJS Express framework

When using Express, routing is one of the most confusing tasks. You know that app. get ('*') can process all pages, but static files are ignored except for custom routes. Recently, when I was writing a small tool, I found a solution:Copy codeThe

Use jquery animate to create a smooth scroll effect (it can be at the top, to the bottom, or a specified place)

It is really convenient to use the anchor to jump to the page, but to increase the effect of the web page, you can use the animate in jquery to implement a rolling action and gradually scroll to the position you want to jump, it looks very

Analysis on the effect principle of the mask layer implemented by pure js

It can be said that after I understood the previous "snake", it was actually much more difficult than I thought at the beginning. Of course, this method is tricky, finally, the function is implemented. Let's analyze and sort it out.1. Implementation

Js Enables automatic page refresh for holiday countdown

Copy codeThe Code is as follows: holiday countdown

JavaScript module drag sample code at will

Copy codeThe Code is as follows: arbitrary drag of the JavaScript module Heading 1 Splendida porro oculi fugitant vitantque tueri. sol etiam caecat, contra si tendere pergas, propterea quia vis magnast ipsius et altea? Ra per purum simulacra

Example of JavaScript scope chain

JavaScript only has the function scope. Each function has a chain of scopes directly connected to the window object. The search for variables goes from the inside to the outside, while the variable is found. At the same time, you can not only find

Examples of sorting JavaScript numeric arrays

However, we will find the problem in use. The array sorting method here is not sorted by the number size we imagined, but to change the original data according to the string test results. This is not what we want. So how can we get what we want to

Conversion between JavaScript objects and strings

JavaScript Object definition method 1. varobjnewObject () [html] & lt ;! -- Addbyoscar999 -- & gt; & lt ;! DOCTYPEHTMLPUBLIC & quot;-// W3C // DTDHTML4.0Transitional // EN & quot; & gt; & lt; HTML & gt; & lt; HEAD & JavaScript Object definition

JavaScript learning Summary

Objective: 1. web-related development is becoming increasingly popular, and it is necessary to learn JS 2. learn one more language and want to learn more about the cultural connotation of one language. I have known the scripting language and have

JS determines the browser type

& Lt ;! DOCTYPEHTMLPUBLIC & quot;-// W3C // DTDHTML4.0Transitional // EN & quot; & gt; & lt; HTML & gt; & lt; HEAD & gt; & lt; TITLE & gt; NewDocument & lt;/TITLE & gt; & lt; METANAME & quot; Generato  New Document    

DevelopingaPluginonAndroid is only applicable...

For details about DevelopingaPluginonAndroid, click the address above. Here I will only pick the most practical address. The use of plug-ins in js needs to call methods in the following forms: callback success functions, callback failure functions,

Ddpowerzoomer. js uses jQuery extension to achieve local image amplification (source code analysis)

When ddpowerzoomer. before js loading, you must import jquery on the page. xx. js, and then export ddpowerzoomer. in js, we will only talk about ddpowerzoomer. js source code loading and execution process 1. the first line of the file is jQuery.

JGCharts Plugin-pie chart, bar chart, and bar chart

Reference [javascript] & lt; scriptsrc & quot; Scripts/jquery-1.4.1.min.js & quot; type & quot; text/javascript & quot; & gt; & lt;/script & gt; on the page; & lt; scriptsrc & quot; Scripts/jgcharts. js & qu Reference on the page [Javascript]

Tips for development: jQuery handles iframe with adaptive content height

We have published another article on development tips: the simple button to go back to the top to implement it. You can click it for a friend you like. In front-end development, we often need to deal with iframe. Sometimes we want iframe to adapt to

Use jQuery basic selector to select elements

& Lt; htmlxmlns & quot; http://www.w3.org/5o/xhtml">

JQuery allows you to select and delete a drop-down box.

Scripttypetext/javascriptdeferdefer // select the value in DropDownList and save it in the hidden domain. // select a member such as functionSelectReceptionist () {if ($ (# % ddlSelectReceptionist. clientID % ). val ()!) {$ (# % HfReceptio

Use jQuerybxCarousel to implement image scrolling

BxCarousel is a Jquery image rolling plug-in with many configurations and ease of use. It has the following features: ◆ you can specify the total number of displayed elements ◆ you can specify the number of elements for each scroll ◆ automatic

JQuery core: Analysis of jQuery () Usage

The instance finds out all the p elements of the child element of the div element, and then sets its border attribute: border (divp).css (border, 1 pxsolidgray); personally try to define and use the jQuery () method to accept a string, it contains

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