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- switch




1. JavaScript . JavaScript , , *.js, HTML , , *.htm *.html

2. HTML JavaScript (Macromedia Dreamweaver, HomeSite, FrontPage, AceHTML, Web Development Studio)

3. Internet Explorer, Mazilla Firefox, Opera.

4. .

5. .

JavaScript - HTML-. JavaScript Java. Java SUN. JavaScript Netscape Communication Corporation. LiveScript. Java LiveScript JavaScript.

JavaScript . JavaScript HTML- . JavaScript HTML- , .

JavaScript . , , , , , .. () ().

<SCRIPT>

JavaScript HTML- <SCRIPT>... </SCRIPT>.

<HTML><HEAD><meta http-equiv=Content-Type content="text/html; charset=windows-1251"></HEAD><BODY><H1>?</H1> <SCRIPT TYPE="text/javascript"> <!-- document.write('!'); //--> </SCRIPT></BODY></HTML>

, , a JavaScript. , /, .. , , -->, .

document write. !. ;, JavaScript.

document HTML-, a. write HTML- !. , .

, JavaScript . JavaScript , .. HTML- background-color, JavaScript - backgroundColor.

<img src="test.gif" border=0OnMouseOver="this.style.backgroundColor='red';" OnMouseOut="this.style.backgroundColor='white';">

JavaScript

JavaScript.

JavaScript var. . , - .

JavaScript .

: , () (), : .

JavaScript IF-ELSE :

Var Vol = 0;

Var b = false;

if(Vol<2)

{

b=true;

}

else if(Vol>100)

{

b=true;}

?

.

{}? { ""}: { ""}

"", , "" .

= (f == 2)? b: + 2;

f 2, b, + 2.

. .

- switch

- switch . , , if - eise, .

switch ({})

{ case { 1}:{ 1}[break;]

[case { 2}:{ 2}[break;]

... case [default:

{, }] }

, switch. , case, . , " 1", 1 . case, , default.

, .

switch (a)

{ case 1: out = "";break;

case 2: out = "";break;

case 3: out = "";break;

default: out = " "; }


FOR

Var n = 20;

for(var i=0; i<n; i++)

{

Text += ' ';

}
WHILE

Var i=0;

Var n=20;

while(i<n)

{ text += ;

i++;

}


: break ( ) continue ( ).

. . (document.write(Buf);)
[ ] (dim[i])
()
,

JavaScript

JavaScript -. JavaScript . , - , , - .

JavaScript : , a , .

JavaScript : Array, Boolean, Date, Global, Function, Math, Number, String.





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