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JavaScript

Francesco Paolini
Francesco Paolini
9,910 Points
Posted by Francesco Paolini
Francesco Paolini
9,910 Points

loop + push + array

I'm trying to push a series of images with id of #img-0, img-1, img-3 etc.. inside the array called imgFolder. I'm trying like this, which I don't know if it's correct cause i'm a beginner, but it seems to crash the browser when i run the html page. it crash the same way it does when it try to run an infinite loop.

let imgFolder = [];

for(i=0; i=4; i+=1){ let imgSelector = document.querySelector('#img-'+i); imgFolder.push(imgSelector); }

3 Answers

Steven Parker
Steven Parker
231,153 Points
Steven Parker
Steven Parker
231,153 Points

You're exactly right, it's an infinite loop because the conditional clause is "i=4" which is always "true".

You probably meant to write "i<4" instead.

Francesco Paolini
Francesco Paolini
9,910 Points
Francesco Paolini
Francesco Paolini
9,910 Points

why i=4 is always true if I can ask?

Steven Parker
Steven Parker
231,153 Points
Steven Parker
Steven Parker
231,153 Points

The value of an assignment is the value assigned (4 in this case), and any non-zero value is considered a "true" when used as a boolean.