Học JavaScript qua ví dụ part 8 ppsx
Học JavaScript qua ví dụ part 8 ppsx
... age = 8;
5 var ssn; // Unassigned variable
6 var job_title=null;
</script>
7 </head>
8 <body bgcolor="lightgreen">
<big>
9 <script type="text /javascript& quot;> ... runtime, the JavaScript interpreter will convert the data to the correct type.
Consider the following variable, initialized to the floating-point value of 5.5. In each suc-
ce...
Học JavaScript qua ví dụ part 25 ppsx
... type="text /javascript& quot;>
1 var grades= [ [77 ,88 ,99,75],
[50,60,99 ,89 ],
[99 ,88 , 78, 92]
];
// alert(grades.length); Output is 3
// alert(grades); Output is 77 ,88 ,99,75,50,60,99 ,89 ,
// 99 ,88 , 78, 92
0 ... Array(77 ,88 ,99),
new Array(50,60,99),
new Array(99 ,88 , 78)
);
or the literal and easier way:
var array_name= [ [77 ,88 ,99],
[50,60,99],
[99 ,88 , 78]
];
T...
Học JavaScript qua ví dụ part 51 ppsx
...
It assigns a pink background color to the left frame by going down the JavaScript
hierarchy: parent.left.document.bgcolor.
8 The status bar in the window is assigned the string “focus leftframe”. ...
bar” feature has been enabled for your browser. For Firefox, see Tools→Options→
Enable JavaScript Advanced JavaScript Settings).
11 An onFocus event handler is assigned to the <body&...
Học JavaScript qua ví dụ part 56 ppsx
... The event Object 513
13.7.6 Key Events
The Handlers. As of JavaScript 1.2, keyboard actions, not just mouse actions, can be
detected in JavaScript programs. Now that we have discussed the event ... The switch statement is used to determine which button was clicked. See Figures
13. 38 and 13.39.
Figure 13. 38 The left mouse button was clicked in the green box (Internet Explorer). The
v...
Học JavaScript qua ví dụ part 70 ppsx
... 627
15.6.3 JavaScript Properties to Represent HTML Attributes
The attributes of an HTML element are accessible as properties in JavaScript. Table 15.5
lists the properties available to JavaScript ... paragraph!<p/>
<p><big>
Continues
From the Library of WoweBook.Com
ptg
624 Chapter 15 • The W3C DOM and JavaScript
<script name="text /javascript& quot;>
4...
Học JavaScript qua ví dụ part 82 ppsx
... characters, the possibilities of fine-tuning your search are endless.
1. JavaScript 1.2, NES 3.0 JavaScript 1.3 added toSource() method. JavaScript 1.5, NES 6.0 added m flag,
nongreedy modifier, noncapturing ... before sending the script to the server. This is an
important function of JavaScript. The user fills out the form and JavaScript checks to see
if all the boxes have been...
Học JavaScript qua ví dụ part 1 potx
... so on. In Chapter 18 we discuss how
this technique works, but for now think of it as JavaScript on steroids.
1.6 What JavaScript Looks Like
Example 1.1 demonstrates a small JavaScript program. ... 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. Java...
Học JavaScript qua ví dụ part 2 ppt
... ptg
8 Chapter 1 • Introduction to JavaScript
1.7 JavaScript and Its Role in Web
Development
When you start learning JavaScript, JavaScript code will be embedded ... so on. In Chapter 18 we discuss how
this technique works, but for now think of it as JavaScript on steroids.
1.6 What JavaScript Looks Like
Example 1.1 demonstrates a small JavaScript program. ... Introduction to...
Học JavaScript qua ví dụ part 3 pps
... JScript 5.5, 5.6, 5.7, 6
JavaScript 1.6 2006 Mozilla Firefox, Safari
JavaScript 1.7 2006 Mozilla Firefox, Safari, Google Chrome
JavaScript 1 .8 20 08 Mozilla Firefox
JavaScript is supported by ... ptg
18 Chapter 1 • Introduction to JavaScript
So where is JavaScript now? As of December 2009, the ECMA-262 Standard is in its 5th
edition. JavaScript is a dialect of ECMAScript,...
Học JavaScript qua ví dụ part 6 pptx
... 2.10, and 2.11.
FORMAT
JavaScript: expression
EXAMPLE 2.4
JavaScript: 5 + 4
Figure 2.9 Internet Explorer and the JavaScript: protocol.
Figure 2.10 Mozilla Firefox and the JavaScript: protocol.
Figure ... Java-
Script does not mean that everyone has JavaScript enabled. There are also some older
text browsers that don’t support JavaScript, but today it’s more likely that JavaScript ha...