My Personal little JavaScript WTF
My Personal little JavaScript WTF
Join the DZone community and get the full member experience.
Join For FreeProtect your applications against today's increasingly sophisticated threat landscape.
I wrote a little function that I thought was pretty trivial. Given a set of objects, iterate over them, check some value, and if good, append matches to an array. Here is an example of what I wrote.
When I ran my code, I kept getting a 0-length array back. I added a simple variable inside my condition and confirmed that it was matching and appending those matches, so... wtf?
Some of you probably see it right away. It took me a good twenty minutes of frustration before I saw it. See the push call? I used brackets instead of parenthesis. I have no idea why this didn't throw an error and I'd love to know why. Ok, JavaScript gurus, can you explain this one?
Rapidly detect security vulnerabilities in your web, mobile and desktop applications with IBM Application Security on Cloud. Register Now
Like This Article? Read More From DZone
Published at DZone with permission of Raymond Camden , DZone MVB. See the original article here.
Opinions expressed by DZone contributors are their own.
{{ parent.title || parent.header.title}}
{{ parent.tldr }}
{{ parent.linkDescription }}
{{ parent.urlSource.name }}