var my_awesome_script = document.createElement('script');
my_awesome_script.setAttribute('src','http://example.com/site.js');
document.head.appendChild(my_awesome_script);
You can use the document.createElement()
function like this:
function addScript( src ) {
var s = document.createElement( 'script' );
s.setAttribute( 'src', src );
document.body.appendChild( s );
}
There is the onload
function, that could be called when the script has loaded successfully:
function addScript( src, callback ) {
var s = document.createElement( 'script' );
s.setAttribute( 'src', src );
s.onload=callback;
document.body.appendChild( s );
}
a nice little script I wrote to load multiple scripts:
function scriptLoader(scripts, callback) {
var count = scripts.length;
function urlCallback(url) {
return function () {
console.log(url + ' was loaded (' + --count + ' more scripts remaining).');
if (count < 1) {
callback();
}
};
}
function loadScript(url) {
var s = document.createElement('script');
s.setAttribute('src', url);
s.onload = urlCallback(url);
document.head.appendChild(s);
}
for (var script of scripts) {
loadScript(script);
}
};
usage:
scriptLoader(['a.js','b.js'], function() {
// use code from a.js or b.js
});
You can try following code snippet.
function addScript(attribute, text, callback) {
var s = document.createElement('script');
for (var attr in attribute) {
s.setAttribute(attr, attribute[attr] ? attribute[attr] : null)
}
s.innerHTML = text;
s.onload = callback;
document.body.appendChild(s);
}
addScript({
src: 'https://www.google.com',
type: 'text/javascript',
async: null
}, '<div>innerHTML</div>', function(){});
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