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The Math object for JavaScript Foundation 14--js

Source: Internet
Author: User
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1 <!DOCTYPE HTML>2 <HTML>3     <Head>4         <MetaCharSet= "UTF-8">5         <title>JS's Math Object</title>6         <Scripttype= "Text/javascript">7             //the Math object is a static method that you can use without instantiating an object.8             varNum= 10.5;9 document.write ("Initial value:" +num);Ten             //ceil () method, rounding a number One document.write ("<br/> Rounding up the Ceil () method:" +Math.ceil (num)); A             //Floor () method, rounding down a number - document.write ("<br/> Rounds down the Floor () method:" +Math.floor (num)); -             //round () method, rounding a number the document.write ("<br/> Rounding Round () method:" +Math.Round (num)); -             //Random (), gets the stochastic number (0.0-1.0 pseudo-random number). Get a random number of 0-9 - document.write ("<br/> Random number ():" +Math.floor (Math.random ()* Ten)); -             functionGetrandom () { + document.getElementById ('Mark'). InnerHTML= "Random Number:" +Math.floor (Math.random ()* Ten); - SetTimeout ('getrandom ()',  $); +             } A         </Script> at     </Head> -     <Bodyonload= "Getrandom ()"> -         <PID= "Mark">Random number</P> -     </Body> - </HTML>

The Math object for JavaScript Foundation 14--js

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Related Keywords:
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