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Compatible get-style function GetStyle ()

Source: Internet
Author: User
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To get a style attribute for an element, you can use:

1 <  ID= "DIV01"  style= "color:red">123</Div  >23var ele = document.getElementById ("div01"); 4 Console.log (Ele.style.color);

However, this can only get the inline style that is written on the element, which is not available for link's style file or the style written in <style></style>.

The standard browser provides a getComputedStyle function that uses:

1 // The first parameter is the node to get the style, the second parameter is a pseudo-class, such as: hover, or null if not. Returns the Cssstyledeclaration object; 2 window.getComputedStyle (element, Pseudo-Class) 3 4 // The desired style can be obtained by the property name, and the font color of the element is given below 5 window.getComputedStyle (Ele,false) ["Color"];

IE is not supported, but it provides a Currentstyle object that results in the same getcomputedstyle as the

1 // The font color of the element can also be obtained by IE in this way 2 ele.currentstyle["Color"];

Combined with the above situation, we can be compatible to get a reliable solution! 

 1  function   GetStyle (ele,name) { 2  if  (ele.currentstyle) {//  IE processing  3  return   Ele.currentstyle[name];  4 } else  { //  Standard browser handling  5  false  ) [name];  6  }  }

It is convenient to get the DIV01 style again!

The complete code is as follows:

1 <!DOCTYPE HTML>2 <HTMLLang= "en">3 <Head>4     <MetaCharSet= "UTF-8">5     <title>Demo</title>6   <style>7 #div01{font-size:16px;}8   </style>9 </Head>Ten <Body> One     <DivID= "Div01"style= "Color:red">123</Div> A   <Script> -   functionGetStyle (ele,name) { -       if(ele.currentstyle) { the         returnEle.currentstyle[name]; -       } Else { -         returngetComputedStyle (Ele,false) [name];  -       } +   } -  +   varEle=document.getElementById ("DIV01"); A  at Console.log (GetStyle (Ele,"Color")); //RGB (255, 0, 0) - Console.log (GetStyle (Ele,"fontSize")); //16px -  -   </Script> - </Body> - </HTML>

Compatible get-style function GetStyle ()

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