SoFunction
Updated on 2025-03-01

Methods to determine whether to use it multiple times

Methods to determine whether to use it multiple times

Updated: September 21, 2014 09:59:08 Submission: whsnow
I believe everyone has used it. It is executed when the window is loaded. How to judge if it is used multiple times? Here is a way to share with you

I believe everyone has used it. It is executed when the window is loaded. How to judge if it is used multiple times? Check out the code below

<script>
function onloadCallback(){
//Todo

}
if () {
var onload_random = 'onload'+();
window[onload_random] = ;
 = function (){
window[onload_random]();
onloadCallback();
};
}
else {
 = function (){
onloadCallback();
};
}
</script>
  • window
  • onload

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