webstorm javascript tutorial

JS Tutorial: JavaScript Date Object usage Let's take a look at an example and return the current date and time. Example two gettime () Results. It ' s been:38.89412106846144 years since 1970/01/01! Okay, let's look at the date tutorial ' Finish Date Object referenceFor a complete reference of all the properties and methods that can be used with

For more information about how to use jsdatetime, see. The Code is as follows: // Convert a Date string such as "10:18:30" to a Date objectVar strArray = str. split ("");Var strDate = strArray [0]. split ("-");Var strTime = strArray [1]. split (":");Var a = new Date (strDate [0], (strDate [1]-parseInt (1), strDate [2], strTime [0], strTime [1], strTime [2]) 2: The second method is really simple. Var s = "09:41:30 "; Var d = new Date (Date. parse (s. replace (/-/g ,"/"))); -------------------

JavaScript: several methods for JS to obtain HTML elements in a webpage. Javascript tutorial GetElementById getElementsByName getElementsByTagName GetElementById, getElementsByName, getElementsByTagName The last two are the collection, and the byid is only a single object. GetElementById usage For example: Taoba Reference Method on the same page: 1. Use id: Lin

JavaScript: the server VBScript and JScript are written in the same way. Javascript tutorial Methods of writing VBScript and JScript on the server with the same features Abstract: This article demonstrates several important applications of ASP server scripts. 1. Traverse collection/Object1.1 VBScript traversal form set Linenum For each temp in reque

JavaScript: exploring the scope and accessibility of js variables. Javascript tutorial Every language has the concept of variables, which are an element used to store information. For example, the following function:1 function Student (name, age, from)2 {3 this. name = name;4 this. age = age;5 this. from = from;6 this. ToString = function ()7 {8 return "my inform

For more information about javascript Object operations, see. This is an entry-level tutorial. 1: constructor Method [Ctrl + A select all Note: If you need to introduce external Js, You need to refresh it to execute] Note: 1: A Dog object is defined here (in javascript, a function is an object. function Dog (name, weight) is also a constructor ), creates an

This article mainly introduces the use of Javascript arrays, including the array size, array traversal, and array methods, for more information about array indexes, see the previous article. Array size Js Arrays can be dynamically adjusted. More specifically, they do not have the concept of array out-of-bounds. a [a. length] is fine. For example, to declare an array a = [1, 3, 5], the current array size is 3, and the index of the last element is 2, b

This article mainly introduces the information and examples of the for loop in the basic Javascript tutorial. for more information, see if you want to run the same code over and over again, and each time the values are different, it is very convenient to use the loop. The Code is as follows: Document. write (cars [0] +"");Document. write (cars [1] +"");Document. write (cars [2] +"");Document. write (cars

This article mainly introduces the use of logarithm Math in JavaScript. the log () method tutorial is the basic knowledge in getting started with JS. If you need it, you can refer to this method to return the natural logarithm of a number (the base number is E ). If the number value is negative, the return value is always NaN. Syntax Math.log( x ) ; The following is the detailed information about the pa

Javscript: How to pass and obtain parameters in the address bar of an HTML page. we know in the Javascript tutorial that the asp program on the server can accept parameters from the form on the html page, can I pass parameters to an html page, that is, add a question mark after html? The answer is yes. The following is an implementation method of javascript. This

JavaScript: js Code note (judge the length of textbox and fix the maximum number of characters), Javascript tutorial Untitled Document

Javascript: Slide Show/contract the effect of the ad code instance, Javascript tutorial Function Description:Slide to expand or contract the advertising effect. You can specify the duration and maximum height when the advertisement is fully expanded. Compatible with browsers: IE5.0 +, FF1.06 +, and Opera8.0 + Instance code: The following is a refer

Javascript example tutorial (19) use HoTMetal (3) Use javascript in HoTMetal3. what kind of resources are suitable for script writing?When using HotMetal PRO 6.0 to write macros, you can use the following resources:Predefined eventsHoTMetaL PRO 6.0 defines several events and special user-defined macros to process them. These macros should be named based on HoTMe

This article mainly introduces the if condition statement in the basic Javascript tutorial. if is a common syntax, you can refer to it as follows: If (coditon) statement1 (else statement2) Coditon can be any expression, or even a Boolean value, because JavaScript will automatically convert it to a Boolean value. If the condition execution result is true, sta

Use Javascript in hotmetal 6. How to write a script for saving the module In the example in this tutorial, a new save module file dialog box is created. Hotmetal has several templates you can choose from. The template is just a common webpage, which is saved by the hotmetal application.ProgramDirectory template. When you select a new project from the File menu, one of the tag options is page from templat

removed from the end of the array. 3. traverse the array In js, there are two methods to traverse the array: 1) for loop 2)... In statement js array traversal dedicated For (var I in array ){ } Note: If a text subscript exists in an array, the corresponding text subscript element cannot be output when the for loop value is used. try to use the for... in statement to traverse this array. IV. text subscript Format: arr ['key'] The array element of the text subject is not included in the

control of Nodejs Crawler Advanced Tutorial node. JS Base module HTTP, web Analytics tool Cherrio implementation Crawler node. js The basic idea of writing crawlers and the example of crawling Baidu pictures to share Nodejs Crawler get data Simple implementation code http://www.bkjia.com/PHPjc/1117089.html www.bkjia.com true http://www.bkjia.com/PHPjc/1117089.html techarticle Php+html+javascript