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JavaScript DHTML/Language Basics/While - История изменений
2026-04-04T15:29:04Z
История изменений этой страницы в вики
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http://wbex.ru/index.php?title=JavaScript_DHTML/Language_Basics/While&diff=3104&oldid=prev
в 09:59, 26 мая 2010
2010-05-26T09:59:54Z
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http://wbex.ru/index.php?title=JavaScript_DHTML/Language_Basics/While&diff=3105&oldid=prev
Admin: 1 версия
2010-05-26T07:24:26Z
<p>1 версия</p>
<p><b>Новая страница</b></p><div>== A While Loop That Decrements from 10 to 1==<br />
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<source lang="html4strict"><br />
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<HTML><br />
<BODY><br />
<H1><br />
<SCRIPT> <br />
var counter = 10; <br />
while (counter > 0) <br />
{ <br />
document.write (counter + "<br>"); <br />
counter--; <br />
} <br />
</SCRIPT><br />
</H1><br />
</BODY><br />
</HTML><br />
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</source><br />
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==Check the loop counter for while loop==<br />
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<source lang="html4strict"><br />
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<html><br />
<head><br />
<title></title><br />
</head><br />
<body><br />
<script type="text/javascript"><br />
var i = 1;<br />
while (i < 101) {<br />
if (i == 99) {<br />
alert("The number is " + i);<br />
}<br />
i++;<br />
}<br />
</script><br />
</body><br />
</html><br />
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</source><br />
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==Do while loop==<br />
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<source lang="html4strict"><br />
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<html><br />
<body><br />
<script type="text/javascript"><br />
i = 0<br />
do{<br />
document.write("The number is " + i)<br />
document.write("<br>")<br />
i++<br />
}while (i <= 5)<br />
</script><br />
</body><br />
</html><br />
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</source><br />
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==Do ... while loop and output calculation result==<br />
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<!-- start source code --><br />
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<source lang="html4strict"><br />
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<html><br />
<head><br />
<title>A Simple Page</title><br />
<script language="JavaScript"><br />
var x = 1<br />
do {<br />
++x;<br />
document.write(x+"<BR>");<br />
}while (x < 10);<br />
</script><br />
</head><br />
<body><br />
</body><br />
</html><br />
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</source><br />
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==Loop in while==<br />
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<!-- start source code --><br />
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<source lang="html4strict"><br />
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<HTML><br />
<HEAD><br />
<SCRIPT language="JavaScript"><br />
<!-- <br />
count=1;<br />
while(count<16)<br />
{<br />
document.write(count+". Repetitive.<BR>");<br />
count+=1;<br />
}<br />
//--><br />
</SCRIPT><br />
</HEAD><br />
<BODY><br />
</BODY><br />
</HTML><br />
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</source><br />
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==The do..while Statement Ensures at Least One Iteration==<br />
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<source lang="html4strict"><br />
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<html><br />
<head><br />
<title>The do..while Statement Ensures at Least One Iteration</title><br />
</head><br />
<body><br />
<script language="JavaScript1.2" type="text/javascript"><br />
<!--<br />
var userEntry = 0;<br />
var x = 1;<br />
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do{<br />
document.writeln(x);<br />
x++;<br />
}while(x <= userEntry);<br />
// --><br />
</script><br />
</body><br />
</html><br />
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</source><br />
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==The while Statement==<br />
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<!-- start source code --><br />
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<source lang="html4strict"><br />
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<HTML><br />
<HEAD><br />
<TITLE>Using the While Statement</TITLE><br />
</HEAD><br />
<BODY><br />
<SCRIPT><!--<br />
i=1<br />
while(i<7){<br />
document.write("<H"+i+">This is a level "+i+" heading." +"</H"+i+">")<br />
++i<br />
}<br />
// --></SCRIPT><br />
</BODY><br />
</HTML><br />
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</source><br />
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==Using a Do/While Loop to Reverse a Text String==<br />
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<!-- start source code --><br />
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<source lang="html4strict"><br />
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<HTML><br />
<BODY><br />
<H1><br />
<SCRIPT> <br />
var newString = ""; <br />
var theString = "string"; <br />
var counter = theString.length; <br />
do <br />
{ <br />
newString += theString.substring(counter-1, counter); <br />
counter--; <br />
} <br />
while (counter > 0 ); <br />
document.write(theString + " reversed is " + newString + "!"); <br />
</SCRIPT><br />
</H1><br />
</BODY><br />
</HTML><br />
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</source><br />
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==Using the while Loop in JavaScript==<br />
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<!-- start source code --><br />
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<source lang="html4strict"><br />
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<html><br />
<head><br />
<title>Using the while Loop in JavaScript</title><br />
</head><br />
<body><br />
<script type="text/javascript"><br />
<!--<br />
var i = 0;<br />
var result = 0;<br />
var status = true;<br />
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document.write("0");<br />
while(status){<br />
result += ++i;<br />
document.write(" + " + i);<br />
if(i == 10){<br />
status = false;<br />
}<br />
}<br />
document.writeln(" = " + result);<br />
// --><br />
</script><br />
</body><br />
</html><br />
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</source><br />
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==While loop==<br />
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<!-- start source code --><br />
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<source lang="html4strict"><br />
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<html><br />
<body><br />
<script type="text/javascript"><br />
i = 0<br />
while (i <= 5){<br />
document.write("The number is " + i)<br />
document.write("<br>")<br />
i++<br />
}<br />
</script><br />
</body><br />
</html><br />
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</source><br />
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==While loop test==<br />
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<!-- start source code --><br />
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<source lang="html4strict"><br />
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<html><br />
<script language="JavaScript"><br />
<!--<br />
function loopTest() {<br />
var index = 1;<br />
while (index <= 12) {<br />
if (index == 6)<br />
break;<br />
index++;<br />
}<br />
document.write("The break statement brings us here.");<br />
}<br />
loopTest();<br />
//--><br />
</script><br />
</html><br />
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</source></div>
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