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Javascript dynamic loading css method summary_javascript skills

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Release: 2016-05-16 18:50:10
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1. Used to load necessary files in external CSS files
@importurl(style.css);
//Can only be used in CSS files or style tags
2. Simply load an external CSS file into the page
document.createStyleSheet(cssFile);
2. Use the createElement method to create a CSS Link tag
varhead=document.getElementsByTagName('HEAD ').item(0);
varstyle=document.createElement('link');
style.href='style.css';
style.rel='stylesheet';
style .type='text/css';
head.appendChild(style);
The following are two functions that are often used.
Copy code The code is as follows:

functionloadJs(file){
varscriptTag=document.getElementById('loadScript');
varhead=document.getElementsByTagName(' head').item(0);
if(scriptTag)head.removeChild(scriptTag);
script=document.createElement('script');
script.src="../js/ mi_" file ".js";
script.type='text/javascript';
script.id='loadScript';
head.appendChild(script);
}
functionloadCss (file){
varcssTag=document.getElementById('loadCss');
varhead=document.getElementsByTagName('head').item(0);
if(cssTag)head.removeChild(cssTag) ;
css=document.createElement('link');
css.href="../css/mi_" file ".css";
css.rel='stylesheet';
css.type='text/css';
css.id='loadCss';
head.appendChild(css);
}
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