Học JavaScript qua ví dụ part 6 pptx
Học JavaScript qua ví dụ part 6 pptx
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2 .6 JavaScript and Old or Disabled Browsers 47
2 .6 JavaScript and Old or Disabled Browsers
2 .6. 1 Hiding JavaScript from Old Browsers
Is JavaScript Enabled? The answer is most probably “yes.” ... WoweBook.Com
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46 Chapter 2 • Script Setup
2.5.3 The JavaScript: URL Protocol
For simple debugging or testing code, you can use the URL pseudoprotocol, JavaScript:...
Học JavaScript qua ví dụ part 9 pptx
... variable. JavaScript declares
constants with the const type (which replaces var) and the name of the constant is in
</body>
</html>
Output:
3 25 cats
4 almost 25
5 29
6 510 years
7 ... ptg
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3.3 Constants 67
3.3 Constants
The weather and moods are variable; time is constant, and so are the speed of lig...
Học JavaScript qua ví dụ part 16 pptx
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7.1 What Is a Function? 151
Calling a Function from JavaScript. In the first examples of this chapter, func-
tions were defined in one JavaScript script and called from another. Although it ...
<body></body> tags. Example 7.2 called a function from one JavaScript program within
the body, but defined the function in another JavaScript program within the head.
Finally,...
Học JavaScript qua ví dụ part 18 pptx
... Function? 161
7.1.5 Recursion
Definition of recursion:
recursion: See recursion.
This definition says it all! JavaScript sup-
ports recursion. So what is it? Have you
ever taken apart a Russian ... execution.
6 This is the first call to the upDown() function. The argument is the number 1. The
output is shown in Figure 7. 16.
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7.1 What Is a Function...
Học JavaScript qua ví dụ part 47 pptx
...
</script>
EXPLANATION ( CONTINUED)
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4 36 Chapter 12 • Working with Images (and Links)
12.3.4 Links with an Image Map and JavaScript
You might want to associate more than one link ... href="spring5.jpg"onclick=
"this.href=&apos ;JavaScript: void(0)';this.disable=true">
<area shape="rect" href="spring2....
Học JavaScript qua ví dụ part 48 pptx
... idea behind JavaScript animation. Instead of flip-
ping through a pad of drawings, the stick man drawings can be scanned into your com-
puter as a set of images as shown in Figure 12. 26. JavaScript ... be executed.
EXAMPLE 12.10 (CONTINUED)
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12 .6 Animation and Timers 449
12 .6 Animation and Timers
On a small but thick pad of paper a boy has drawn a...
Học JavaScript qua ví dụ part 61 pptx
... ptg
548 Chapter 14 • Introduction to CSS (Cascading Style Sheets) with JavaScript
border-left-width thin, medium, thick, 3em All
border-right <border-right-width> ... All
margin-left .5in, 40% All
margin-right 20em, 45% All
margin-top 1cm, 20% All
padding 2em, 4em, 6em (right, bottom, left) All
padding-bottom 2em, 20% All
padding-left .25in, 20% All
padding-right ... Library of WoweBo...
Học JavaScript qua ví dụ part 66 pptx
... CSS styles and JavaScript to the DOM ele-
ments to create what will effectively make it possible to manipulate, create, and delete
any part of your page on the fly.
14.11.2 How JavaScript Views ... your page, but now we need JavaScript to bring the
Web page to life, to make it dynamic. Throughout this text we have been using event
handlers and functions with JavaScript to create...
Học JavaScript qua ví dụ part 85 pptx
...
in this case, one or more lowercase letters. JavaScript provides a number of quantifiers
as shown in the Table 17.9.
The Greed Factor. Normally quantifiers are “greedy”; that is, they match ... expression test() method will return true because this string, 1 265 53,
contains a 6 followed by any two digits. See Figure 17. 16.
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... entered 3.7, or numb...