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JavaScript Getting started the third day

Source: Internet
Author: User
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Closures: Child functions can use local variables of the parent function
<HTML>    <Head>        <title>Closed Package</title>    <Script>        functionaaa () {//Parent Function            vara= A; functionBBB () {//A child function closure can refer to a local variable of the parent functionalert (a);        } BBB ();    } aaa (); </Script>    </Head>    <Body>         </Body></HTML>

Interlaced color

<HTML>    <Head>        <title>Interlaced color</title>    <Script>window.onload=function(){            varALi=document.getElementsByTagName ('Li');  for(varI=0; I<Ali.length;i++){             //I 0 1 2 3 4 5 ...                if(i%2==0) {Ali[i].style.background='Grey'; }                ElseAli[i].style.background="'; }        }    </Script>    </Head>    <Body>     <ul>            <Li></Li>            <Li></Li>            <Li></Li>            <Li></Li>                    <Li></Li>            <Li></Li>                    <Li></Li>                    <Li></Li>            <Li></Li>     </ul>    </Body></HTML>

Seconds conversion

<HTML>    <Head>        <title>Seconds conversion</title>    <Script>        vars=1137; Alert (parseint (S/60) + ' min ' +s%60+ ' seconds ');    </Script>    </Head>    <Body>    </Body></HTML>

Switch statement

<HTML>    <Head>        <title>Switch statement</title>    <Script>        varname="Zhang San"; varSex='male'; Switch(Sex) { Case 'male': Alert (name+'Hello, sir. ');  Break;  Case 'female': Alert (name+'Hello, Madam! ');  Break; default: Alert (name+'Hello! ');} </Script>    </Head>    <Body>    </Body></HTML>

Trinocular operator

Conditions? Statement 1: Statement 2

    <Script>      vara= A;//judging Odd even numbersa%2==0?Alert ("even"): Alert ("Odd"); </Script>

JavaScript Getting started the third day

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