Being a JavaScript developer can be an exciting job. Almost every day you will find something mysterious and otherworldly. Sometimes that's a magic...
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An example of the one use case I can think of is for simple templating. For example Underscore uses it on the
template()function which can be called from modern JS:underscorejs.org/docs/underscore-e...
Personally I've used it only 1 time I remember after doing JS for 20+ years and it was to create a templating feature for Web Components.
Pascal has a
with ... do ...statement, which behaves in the same way as in JS.Wow, this sounds absolutely horrible from today's point of view 😅 I wonder what the original idea behind it was. I mean what made the devs think something like this would be necessary or improve the language?
I've used it on a project where we created an in browser ide for days analysis. You would configure an object with properties for pluggable builtins, then surround the user's code in a with statement and emit it into a sandbox iframe.
I always liked with :D... how about labels? I remember being weirded out the first time I saw them: developer.mozilla.org/en-US/docs/W...
The only time that I've used this is when in the node console where you can run
with(process) { exit() }, but .exit is definitely a better way to exit
Or let's make it process?.exit(), then you can use it anywhere :-)
This bring back so much memory when i was young and messing around with vb.net.
If only JS
withworked like the vb.net it would be much more useful and no accidental shadowing :)I saw this in a c# codebase a few days ago.
Funny how it's usage is similar
You have a good sense of humour :D. Nicely written article.
"If you use the with keyword, everyone will think you are crazy and avoid you in the lunch room. Or maybe they will just look at you funny."
As they should.