Học JavaScript qua ví dụ part 37 pot
Học JavaScript qua ví dụ part 37 pot
... Library of WoweBook.Com ptg 11.4 JavaScript and the form Object 341 11.4 JavaScript and the form Object In the previous example, the HTML form had nothing to do with JavaScript. After a form has ... the form information to the server, JavaScript can check to see if the form was filled out properly; for example, every input field can be validated by JavaScript. It can check for empty...
Ngày tải lên: 04/07/2014, 02:20
Học JavaScript qua ví dụ part 1 potx
... interpreted by a JavaScript engine that lives in the browser. JavaScript is not HTML, but JavaScript code can be embedded in an HTML docu- ment and is contained within HTML tags. JavaScript has ... until a JavaScript opening tag is read, at which time the JavaScript interpreter takes over. When the closing JavaScript tag is reached, the HTML processing continues. 1. But the cr...
Ngày tải lên: 04/07/2014, 02:20
Học JavaScript qua ví dụ part 15 pot
... marks the end of the while loop’s block of statements. 7 The JavaScript program ends here. From the Library of WoweBook.Com ptg 6.3 Loops 137 6.3.6 Nested Loops and Labels Nested Loops. A loop within ... <head> <title>Nested loops</title> </head> <body> <script type="text /javascript& quot;> <! Hiding JavaScript from old browsers 1 var str...
Ngày tải lên: 04/07/2014, 02:20
Học JavaScript qua ví dụ part 23 potx
... to all Book objects. 5 When JavaScript tries to retrieve the value of the category property, the property was not directly assigned in the constructor function. JavaScript checks to see if a ... 8.2 explained that unlike Java and C++, JavaScript doesn’t have a class mech- anism per se, but inheritance involves reusing or extending a class. With JavaScript we can simulate a class wit...
Ngày tải lên: 04/07/2014, 02:20
Học JavaScript qua ví dụ part 24 pot
... 8.15 <html> <head><title>Object object</title> <script type="text /javascript& quot;> 1 function Book(title, author){ this.title =title; this.author=author; } ... print the employees’ names. Add a phone property to this function. <script type="text /javascript& quot;> function Employee(){ var = name; this.getName = function(){ return this.na...
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Học JavaScript qua ví dụ part 27 potx
... Date</title></head> <body bgcolor="aqua"><h2>Date and Time</h2> <big> <script type="text /javascript& quot;> 1 var now = new Date(); // Now ... What It Does From the Library of WoweBook.Com ptg 238 Chapter 9 • JavaScript Core Objects 9.4.2 Manipulating the Date and Time JavaScript stores dates in milliseconds, so if you have more...
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Học JavaScript qua ví dụ part 33 potx
... happen in the future For a detailed explanation of how JavaScript internally handles the timers, see http://www.howtocreate.co.uk/tutorials /JavaScript/ timers. Table 10.8 Timers Timing Methods ... Library of WoweBook.Com ptg 10.1 JavaScript and the Browser Object Model 297 EXAMPLE 10.11 <html> <! This script is a modification of a free script found at the JavaScript source...
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Học JavaScript qua ví dụ part 36 potx
... WoweBook.Com ptg 11.2 The JavaScript Hierarchy 331 Using the document Object Properties in JavaScript. Example 11.2 demon- strates how the properties that describe the document are used in a JavaScript program. ... ptg 11.2 The JavaScript Hierarchy 329 the window, because JavaScript knows that the window is at the top of the tree. Instead of saying ... by numeric index value (numeri...
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Học JavaScript qua ví dụ part 42 pot
... Devices (Controls) 375 <br /> <font face=arial> <big> <script type="text /javascript& quot;> // How do we reference the form’s text field in JavaScript? // Go down ... selected. Figure 11 .37 A selection list’s properties after an item has been selected. EXAMPLE 11.22 <html> <head><title>Drop-Down Menus</title> <script type=&qu...
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Học JavaScript qua ví dụ part 44 pot
... Properties of the JavaScript links Object Property What It Describes hash The anchor part of the URL (if any). host The hostname port part of the URL. hostname The hostname part of the URL. href ... (hotspot) and the link that will be associated with that part of the image. The most time-consuming and boring part of this process is determining the coordinate positions for the hot...
Ngày tải lên: 04/07/2014, 02:20