tabletop js

JSON string format{" 10.10.11.1": { "target_1": "34.2", "Target_3": "70.83", "target_2": "50.51", "target_5": " 110.68 ", " c_event ":" Event ", " Target_4 ":" 90.79 ", " C_timestamp ":" 12:54:34 ", " target_6 ":" 10.2 ", "C_subject": "10.18.11.0" }}{String,mapJS function:function GetValue () {var str = ' {' 10.10.11.1 ': {"target_1": "34.2", "Target_3": "70.83", "target_2": "50.51"}} '; var map = E Val ("(" +str+ ")"); for (var

"). empty ();//Empty drop-down boxGets the value of a set of radio selected itemsvar item = $ (' input[@name =items][@checked] '). Val ();Gets the text of the Select selected itemvar item = $ ("select[@name =items] option[@selected]"). Text ();The second element of the Select drop-down box is the currently selected value$ (' #select_id ') [0].selectedindex = 1;Radio the second element of a radio group is the currently selected value$ (' input[@name =items] '). Get (1). checked = true;Get Value:t

Multiple sites need to fill in the text box by default will give a default language, when the mouse clicks the text box can be the inside of the default text to clear, when the text is deleted and the focus left the text box when the default text to the text box. The code is as follows: The above code implements our request, when clicks the text box to be able to clear the text box the content, if the text box does not enter any content, this time the mouse focus leaves the text b

JSON string format {" 10.10.11.1": {"target_1": "34.2", "Target_3": "70.83", "target_2": "50.51", "target_5": " 110.68 ", " c_event ":" Event ", " Target_4 ":" 90.79 ", " C_timestamp ":" 12:54:34 ", " target_6 ":" 10.2 ", ' c_subject ': ' 10.18.11.0 ' } } {String,map JS function: function GetValue () { var str = ' {10.10.11.1 ': {' target_1 ': ' 34.2 ', ' target_3 '

function Ismail (name)/e-mail value detection{if (! Isenglish (name))return false;i = Name.indexof ("at");j = Name Dot LastIndexOf ("at");if (i = = 1)return false;if (i!= j)return false;if (i = = Name dot length)return false;return true;} jquery Verification Mailbox function Checkemail () { var temp = document.getElementById ("Tbemail");//This sentence can be replaced with the following var temp = $ ("#tbemail"); Verification of e-mail var myreg =/^ ([a-za-z0-9]+[_|_|.]?) *[a-za-z0-9]+@

Although it is now possible to transfer files to the server in a browser by using a form, especially the form control, this thing can only pass one file at a time. If the user needs to upload the entire album or more pictures, then the technical staff had to think of other ways, such as Flash or JS. But now, with the new tags provided by HTML5, we can totally do without the extra stuff. HTML5 provides several new tags for uploading files, such as mul

!document.getboxobjectfor)? Doc_body.scrollTop:doc_element.scrollTop;The offtset=document of the visual region is high +var visio_offset = offset + doc_element.clientheight;if (Last_offset = = Visio_offset) {SetTimeout (Initdownloadlisten, 200);Return}Last_offset = Visio_offset;var visio_height = doc_element.clientheight;var img_show_height = visio_height + offset;for (var key in map_element) {if (Img_show_height > key) {var t_o = Map_element[key];var img_vl = t_o.length;for (var l = 0; l ELEME

Write any programming code, different developers will have different views. But the reference is always good, the following is from the Javascript Toolbox released 14 best JS Code writing techniques , sofish translation (1,2). 1. Always use ' var ' In JavaScript, a variable is not a global scope is a function range, the use of "var" keyword is to keep the variables concise and clear key. When declaring a variable that is either global or a function

javascript|js| Dynamic I now have a layer, there is a div in the layer, when the content is more often appear in the scroll bar, I now think, when the scroll bar appears, the width of the table div is equal to the width of the div minus the width of the scroll bar, how to dynamically get the width of the scroll bar, Or to determine whether the state of the scroll bar appears. ----------------------------------------------------------------------------

Alert ("ABACACF". Replace (' A ', ' 9 ')); Alert ("ABACACF". Replace (/a/g, ' 9 ')); The first run results 9BACAF This just replaces the first The result of the second operation 9b9c9f This can realize all the substitution function of JS In fact, the second meaning is to implement the global substitution with regular expressions G represents gobal Additional: Global substitution with special symbols Copy Code code as follows: Onclick=

The code is very simple, it is not a lot of nonsense. Copy Code code as follows: The first way of defining var person=new Object (); An object was created. Person.name= "Tom"; Call the Name property with the person object, and its value is Tom alert (person.name); Show Name property value Person.say=function () {//Adds a say function to the person object. Alert ("person say"); }; Person.say (); Copy Code code as follows: The second way of

[i].match (re);Script.setattribute (Temp[1], temp[2]);}return script;}Return This.each (function () {var $this = $ (this);var $frame = $ (this). parent ();var Old_node = $.trim ($ (this). Val ());var scriptnode = Str_dom (Old_node);var textarea = $this [0]; into a native pair of likeTextarea.parentNode.insertBefore (Scriptnode, textarea);$this. Remove ();});}; Startup code$ (function () {Determine whether to displayfunction SetPos () {var _height = document.documentElement.clientHeight;var _scro

[Switch] JS function set Daquan, js function Daquan 1.doc ument. write (""); Output statement 2. Comments in JS are // 3. The traditional HTML document sequence is: document-> html-> (head, body) 4. the DOM sequence in a browser window is: window-> (navigator, screen, history, location, document) 5. Get the name and value of the element in the form: document. get

How to install Node. js on Linux and Node. js on Linux Node. js is built on Google's V8 JavaScript engine server software platform. Node. js is the preferred solution in JavaScript for building high-performance server-side applications. What makes it so popular to use a huge ecosystem of Node.

JS function set overview, js function set1.doc ument. write (""); Output statement2. Comments in JS are //3. the traditional HTML document sequence is: document-> html-> (head, body) 4. the DOM sequence in a browser window is: window-> (navigator, screen, history, location, document)5. Get the name and value of the element in the form: document. getElementById ("

Objective After the dragon looked up, March entered the third week. Today morning reading articles from @ NET to see the fish authorized to share. The text starts from here ~ Recently found that there are a lot of JS single-threaded operation mechanism of the article, but found that a lot of information is only a part of the knowledge, and the different places of the statement is not uniform, easy to create confusion. So prepare to comb this piece of

Simple getting started with Node. js in Windows, and getting started with node. js Recently, Paypal and Netflix announced the migration to Node. js, the server-side Javascript platform has proved its value in the enterprise field. this is a small step for Node and a huge leap for Javascript! From. NET, Java, PHP, Ruby on Rails and programmers in more technical fi

Date: December 15, 2016 Talk about basic grammar first; Most are to operate the form; JS dynamic effects and data interaction (Ajax? ） JS also has its own API JS most of the DOM operations are for input. Case study, a simple check on the registration page, a box for null values or incorrect values, and then learn to write the data on the page later.

Details about js asynchronous file loaders and js asynchronous loading. Details about js asynchronous file loaders, details about js asynchronous loading we often encounter this scenario, some pages depend on third-party plug-ins, and these plug-ins are relatively large, it is not suitable for details about

This article mainly introduces the most popular Node. introduction to js concise and full-stack development frameworks, this article explains Express. js, KOA, Total. js, Sails. js, Meteor, Mean. i/O and other frameworks. For more information, see Rapid development, easy scalability, high performance, and robust robus