My Personal little JavaScript WTF
My Personal little JavaScript WTF
Join the DZone community and get the full member experience.
Join For FreeDeploying code to production can be filled with uncertainty. Reduce the risks, and deploy earlier and more often. Download this free guide to learn more. Brought to you in partnership with Rollbar.
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?
Deploying code to production can be filled with uncertainty. Reduce the risks, and deploy earlier and more often. Download this free guide to learn more. Brought to you in partnership with Rollbar.
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 }}