Are we altering the scope or is there another factor at play?

My knowledge of JavaScript is quite limited, so I'm unsure about what mistake I might be making.

Here's an example that works perfectly:

myarray = [];

myarray.push(1);

This following example also works flawlessly:

myarray = [];

function example(){
  myarray.push(1);
}

example();

However, this next snippet doesn't work at all:

myarray = [];

function example(){
  myarray.push(1);
}

$(window).load(function(){
  example();
});

I suspect that there might be some scope-related issue with $(window).load(function(){....

Is there a way to get example() to run in the third snippet as it does in the second one?

Answer №1

The window.onload event occurs once the entire DOM has finished loading. This means that in the third scenario, the example() function will be executed later while other code will run before it.

I have tested and encountered your issue. Below is the code I ran and my observations:

myarray = [];

function example(){
  myarray.push(1);
}

$(window).load(function(){

  example();
});

setTimeout(function() {
    console.log(myarray);
},100);

If you find any alternative explanations, please share them as a response to your question. I am eager to delve deeper into this topic.

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