
javascript - When should I use ?? (nullish coalescing) vs || (logical ...
Related to Is there a "null coalescing" operator in JavaScript? - JavaScript now has a ?? operator which I see in use more frequently. Previously most JavaScript code used ||. let userAge =
What does the !! (double exclamation mark) operator do in …
Novice JavaScript developers need to know that the "not not" operator is using implicitly the original loose comparison method instead of the exact === or !== operators and also the …
What is the purpose of the dollar sign in JavaScript?
Mar 29, 2022 · Javascript does have types; and in any case, how is the dollar sign even related to that? It's just a character that happens to be a legal identifier in Javascript.
How to use OR condition in a JavaScript IF statement?
Mar 2, 2010 · How to use OR condition in a JavaScript IF statement? Asked 15 years, 5 months ago Modified 2 years, 6 months ago Viewed 875k times
Difference between == and === in JavaScript - Stack Overflow
Feb 7, 2009 · What is the difference between == and === in JavaScript? I have also seen != and !== operators. Are there more such operators?
JavaScript OR (||) variable assignment explanation
That is, JavaScript "short-circuits" the evaluation of Boolean operators and will return the value associated with either the first non-false variable value or whatever the last variable contains.
How do I escape a single quote ( ' ) in JavaScript? [duplicate]
How do I escape a single quote ( ' ) in JavaScript? [duplicate] Asked 12 years, 4 months ago Modified 2 years, 7 months ago Viewed 672k times
How can I declare optional function parameters in JavaScript?
Oct 9, 2012 · Can I declare default parameter like function myFunc( a, b=0) { // b is my optional parameter } in JavaScript?
javascript - Load local JSON file into variable - Stack Overflow
I put everything that's in the {} in a content.json file and tried to load that into a local JavaScript variable as explained here: load json into variable. var json = (function() {
How to instantiate a File object in JavaScript? - Stack Overflow
Because this is javascript and dynamic you could define your own class that matches the File interface and use that instead. I had to do just that with dropzone.js because I wanted to …