Sometimes when referencing other js, its js uses the window.onload event. In this case, the onload event of the imported page may not be executed. How can I run both? In addition to the method of writing the two together, there are other methods
if(window.onload!=null){
eval("theOldFun="+window.onload.toString());
window.onload=function(){theOldFun();addReadResource();};
}The role of the eval() function:
Its function is to parse the corresponding string into JS code and run it
For example, you now want to run a variable method
function name1(){……}
function name2(){……}
var m="name1";
eval(m+'()');//运行name1();
m='name2';
eval(m+'()');//运行name2();
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