http://wbex.ru/index.php?action=history&feed=atom&title=JavaScript_Tutorial%2FMath%2Frandom
JavaScript Tutorial/Math/random - История изменений
2026-04-04T06:10:35Z
История изменений этой страницы в вики
MediaWiki 1.30.0
http://wbex.ru/index.php?title=JavaScript_Tutorial/Math/random&diff=8813&oldid=prev
Admin: 1 версия
2010-05-26T08:24:35Z
<p>1 версия</p>
<table class="diff diff-contentalign-left" data-mw="interface">
<tr style="vertical-align: top;" lang="ru">
<td colspan="1" style="background-color: white; color:black; text-align: center;">← Предыдущая</td>
<td colspan="1" style="background-color: white; color:black; text-align: center;">Версия 08:24, 26 мая 2010</td>
</tr><tr><td colspan="2" style="text-align: center;" lang="ru"><div class="mw-diff-empty">(нет различий)</div>
</td></tr></table>
Admin
http://wbex.ru/index.php?title=JavaScript_Tutorial/Math/random&diff=8812&oldid=prev
в 18:52, 25 мая 2010
2010-05-25T18:52:56Z
<p></p>
<p><b>Новая страница</b></p><div>== Generate a random integer between 2 and 10==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="javascript"><br />
<html><br />
<head><br />
<title>Example</title><br />
</head><br />
<body><br />
<script type="text/javascript"><br />
function selectFrom(startValue, endValue) {<br />
var iChoices = endValue - startValue + 1;<br />
return Math.floor(Math.random() * iChoices + startValue);<br />
}<br />
<br />
var iNum = selectFrom(2, 10);<br />
alert(iNum);<br />
</script><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== Generate random numbes in a range==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="javascript"><br />
<html><br />
<head><br />
<title>die Roller</title><br />
<script><br />
var rollRaw = 0;<br />
var rollBigger = 0;<br />
var rollInt = 0;<br />
var rollFinal = 0;<br />
var result = "";<br />
rollRaw = Math.random();<br />
rollBigger = rollRaw * 6;<br />
rollInt = Math.floor(rollBigger);<br />
rollFinal = rollInt + 1;<br />
result = "rollRaw: " + rollRaw + "\n";<br />
result += "rollBigger: " + rollBigger + "\n";<br />
result += "rollInt: " + rollInt + "\n";<br />
result += "rollFinal: " + rollFinal + "\n";<br />
alert(result);<br />
</script><br />
</head><br />
<body><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== Generate random URL==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="javascript"><br />
<HTML><br />
<HEAD><br />
<SCRIPT language="JavaScript"><br />
<!--<br />
var rand_url= new Array()<br />
rand_url[0]="http://www.wbex.ru";<br />
rand_url[1]="http://www.wbex.ru";<br />
rand_url[2]="http://www.wbex.ru";<br />
rand_url[3]="http://www.wbex.ru";<br />
rand_url[4]="http://www.wbex.ru";<br />
var rand_num= Math.floor(Math.random()*5);<br />
//--><br />
</SCRIPT><br />
</HEAD><br />
<BODY><br />
<H2>List of Cars:</H2><br />
<SCRIPT language="JavaScript"><br />
<!--<br />
document.write("<A HREF=""+rand_url[rand_num]+"">"+rand_url[rand_num]+"</A>");<br />
//--><br />
</SCRIPT><br />
</BODY><br />
</HTML></source><br />
<br />
<br />
<br />
== Math.random()==<br />
<br />
<p>Syntax</p><br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="javascript"><br />
math.random(num)</source><br />
<br />
<br />
<br />
== Math.round a random number==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="javascript"><br />
<html><br />
<head><br />
<title>A Simple Page</title><br />
<script language="JavaScript"><br />
<!--<br />
rndNum = Math.random();<br />
rndNum = rndNum * 100;<br />
alert(Math.round(rndNum));<br />
// --><br />
</script><br />
</head><br />
<body><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== Use Math.random to generate random number==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="javascript"><br />
<html><br />
<head><br />
<title>A Simple Page</title><br />
<script language="JavaScript"><br />
<!--<br />
alert(Math.random());<br />
// --><br />
</script><br />
</head><br />
<body><br />
</body><br />
</html></source></div>