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  1. 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 …

  2. javascript - When should I use ?? (nullish coalescing) vs || (logical ...

    The nullish coalescing operator (??) in JavaScript only considers null or undefined as "nullish" values. If the left-hand side is any other value, even falsy values like "" (empty string), 0, or …

  3. 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 …

  4. 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, 6 months ago Modified 1 year, 9 months ago Viewed 420k times

  5. 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.

  6. Is there a "null coalescing" operator in JavaScript?

    Jan 25, 2009 · JavaScript now supports the nullish coalescing operator (??). It returns its right-hand-side operand when its left-hand-side operand is null or undefined, and otherwise returns …

  7. 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:

  8. 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 …

  9. 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?

  10. How to remove all event listeners of a DOM object in JavaScript?

    How to remove all event listeners of a DOM object in JavaScript? Asked 14 years, 9 months ago Modified 3 days ago Viewed 238k times