On: JavaScript variables: var and let and const

[allenskd]

That's amazing. I was just scratching my head about const when I read the article, "so what's the purpose if I can change the value... but I guess I can't re-assign the variable with a new value .... that's it?"

I still found the article incredibly informative, sadly as someone still stuck working on legacy apps it falls into "...in some near future I'll take advantage of JavaScript new stuff"

[karatestomp → allenskd]

> That's amazing. I was just scratching my head about const when I read the article, "so what's the purpose if I can change the value... but I guess I can't re-assign the variable with a new value .... that's it?"

If the value is a primitive, you can't change it. If the value's a reference you also can't change that, but of course you can modify whatever that points to.

Is that what's bugging people about this?

[allenskd → karatestomp]

I believe so. I don't make a big issue out of it... but anything carrying the word const I expect it to be fully read-only with no "buts" in between throughout the whole execution of the program. I guess if they used "readonly" as C# it would make more sense?

[Kaze404 → allenskd]

If you're willing to add a build step to the project, Babel will let you use all the new features and compile down to whatever version you need.

[allenskd → Kaze404]

Thanks, I've never checked out Babel. I will truly suggest that to my lead, seems something we can take advantage of.