Học JavaScript qua ví dụ part 7 ppt
Học JavaScript qua ví dụ part 7 ppt
... scientific notation
.234e+3 scientific notation
0x456fff hexadecimal
0x456FFF hexadecimal
077 7 octal
1. Any string without quotation marks surrounding it is considered the name of a variable.
Table ... get an error.) The
word undefined is not a keyword in JavaScript. If compared with the == equality opera-
tors, null and undefined are equal, but if compared with the identity operator,...
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 directly in the ... Introduction to JavaScript
Some of the events that JavaScript can handle are listed in Table 1.1.
1.9 Standardizing JavaScript and the W3C
ECMAScript, which is more commonly known by the name JavaS...
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.” ... 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...
Học JavaScript qua ví dụ part 9 pptx
... Netscape, and many browsers support the JavaScript reserved
keyword const to declare constants (see Figure 3 .7) . It is important to note that Internet
Explorer 7 and 8 do not support it, as shown ... 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 51...
Học JavaScript qua ví dụ part 16 pptx
... on-
Click event handler is a JavaScript function enclosed in quotation marks (see Fig-
ure 7. 7).
Figure 7. 6 When the button is clicked, the event is triggered.
EXAMPLE 7. 4 (CONTINUED)
From the ... the JavaScript:
pseudoprotocol, followed by the name of the function to be called. When the user
clicks this link, JavaScript calls the function, greetings(). (See Figure 7. 5.)
Figur...
Học JavaScript qua ví dụ part 18 pptx
... the number 1. The
output is shown in Figure 7. 16.
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7. 1 What Is a Function? 165
Figure 7. 16 Output from Example 7. 11. Alert box displays: Call level: 1, Call ... so on? Fibonacci came up
Figure 7. 14 The closure remembers the values of local variables.
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164 Chapter 7 • Functions
EXAMPLE 7. 11
<html>
&...
Học JavaScript qua ví dụ part 29 ppt
... Chapter 17, “Regular Expressions and Pattern Matching.”
Figure 9.31 Using the indexOf() String method.
Figure 9.32 The user entered an e-mail address without the @ symbol.
EXAMPLE 9. 27 (CONTINUED)
... JavaScript Core Objects
Search and Replace Methods. In word processing software you’ll always find
some mechanism to search for patterns in strings and to replace one string with another....
Học JavaScript qua ví dụ part 31 ppt
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10.1 JavaScript and the Browser Object Model 277
complete JavaScript program ready to copy and paste into your editor. Save it as a .js file
and then include it in your JavaScript code ... ptg
271
chapter
10
It’s the BOM!
Browser Objects
10.1 JavaScript and the Browser Object Model
JavaScript programs are associated with a browser window ... WoweBook.Com
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10...
Học JavaScript qua ví dụ part 34 ppt
... 310.)
FORMAT
JavaScript: window.location.href = "URL";
JavaScript: window.location.replace("URL");
EXAMPLE
JavaScript: window.location.href = "http://www.legos.com/";
JavaScript: ... bgcolor="#FFFFFF">
7 <p><a href=" ;JavaScript: openSite('tocmain.html')">Home</a><p>
<p><a href=" ;JavaScr...
Học JavaScript qua ví dụ part 43 ppt
... Write a JavaScript program that will print the number of days
until his or her birthday in the second text field.
6. Write a JavaScript function that will finish the story in Example 11.20.
7. Write ... learned how JavaScript can access this data and manipulate it; for example, how to
change the text in a box, verify that there was any input, stop a submission, open up
EXPLANATION
1...