JavaScript语言window.onload文件连锁

Posted 2021-02-25

Window.onload chaining using Namespaces.

/* Run code inside a new namespace. This will allow the use of 
 * the same variable 'previous_onload', across multiple namespaces.
 *
 * Use the exact same code multiple times, and your functions
 * will be executed in the order in which they were stacked. */
 
(function() {
 
	// Backup previous onload method.
 
	var previous_onload = window.onload;
 
	window.onload = function() {
 
		try { previous_onload(); } catch(e) { } // Execute. Ignore if error.
 
		// Your code goes here
 
		console.log("Running Code...");
 
	}
 
})();