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JS Knowledge Point

Source: Internet
Author: User
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JS get Element
Document get element by id ' link ' obtains the element element by ID Connection//Documents document get Get
document.getElementById (' link '); Link is the name of an ID in HTML

Function call
1. Direct call to ABC ();
2. Event invocation
element. event = Fuction () {

}

If the script is placed inside the head, you need to add window.onload = function () {};
If you put it inside the body, you don't have to add

001

The ability to display a hyperlink's prompt message

Method 1

<!DOCTYPE HTML><HTML>      <Head>            <MetaCharSet= "UTF-8">            <title></title>            <styletype= "Text/css">#div1{width:100px;Height:100px;Background-color:#ccc;Border:1px solid: #DCECFA;Display:None;                  }            </style>            <Script>                  functionA () {document.getElementById ('Div1'). Style.display='Block'; }                  functionB () {document.getElementById ('Div1'). Style.display='None'; }            </Script>      </Head>      <Body>            <ahref="#"onmouseover= "A ()"onmouseout= "B ()">Website</a>            <DivID= "Div1" >for the security of your information</Div>      </Body></HTML>
Method 1

JS Knowledge Point

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