About 2,310,000 results
Open links in new tab
  1. 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 …

  2. What does ${} (dollar sign and curly braces) mean in a string in ...

    Mar 7, 2016 · What does $ {} (dollar sign and curly braces) mean in a string in JavaScript? Asked 9 years, 8 months ago Modified 1 year, 11 months ago Viewed 424k times

  3. Which equals operator (== vs ===) should be used in JavaScript ...

    Dec 11, 2008 · I'm using JSLint to go through JavaScript, and it's returning many suggestions to replace == (two equals signs) with === (three equals signs) when doing things like comparing …

  4. How do you use the ? : (conditional) operator in JavaScript?

    Jun 7, 2011 · 27 It's a little hard to google when all you have are symbols ;) The terms to use are "JavaScript conditional operator". If you see any more funny symbols in JavaScript, you should …

  5. What is the purpose of the dollar sign in JavaScript?

    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.

  6. What's the difference between & and && in JavaScript?

    This operator is almost never used in JavaScript. Other programming languages (like C and Java) use it for performance reasons or to work with binary data. In JavaScript, it has questionable …

  7. javascript - What does [object Object] mean? - Stack Overflow

    In JavaScript there are 7 primitive types: undefined, null, boolean, string, number, bigint and symbol. Everything else is an object. The primitive types boolean, string and number can be …

  8. Usage of the backtick character (`) in JavaScript

    Dec 28, 2014 · The backtick character (`) in JavaScript is used to define template literals. A template literal is a special type of string that allows you to embed expressions, which are …

  9. How does the double exclamation (!!) work in JavaScript?

    Mar 28, 2015 · How does the double exclamation (!!) work in JavaScript? [duplicate] Asked 10 years, 8 months ago Modified 1 year, 9 months ago Viewed 253k times

  10. operators - javascript i++ vs ++i - Stack Overflow

    Jul 7, 2016 · In javascript I have seen i++ used in many cases, and I understand that it adds one to the preceding value: