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  1. 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 =

  2. What's the meaning of "=>" (a fat arrow formed from equal and …

    Jun 20, 2017 · JavaScript arrow functions are roughly the equivalent of lambda functions in python or blocks in Ruby. These are anonymous functions with their own special syntax and operate …

  3. 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, 4 months ago Modified 1 year, 7 months ago Viewed 417k times

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

    Jun 7, 2011 · The conditional (ternary) operator is the only JavaScript operator that takes three operands. This operator is frequently used as a shortcut for the if statement.

  5. javascript - Are +0 and -0 the same? - Stack Overflow

    Aug 28, 2011 · Reading through the ECMAScript 5.1 specification, +0 and -0 are distinguished. Why then does +0 === -0 evaluate to true?

  6. JavaScript OR (||) variable assignment explanation - Stack Overflow

    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. …

  7. 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 …

  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. 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, 4 months ago Modified 2 years, 5 months ago Viewed 873k times

  10. Microsoft account requires JavaScript to sign in.

    Aug 27, 2022 · This web browser either does not support JavaScript or scripts are being blocked. To find out whether your browser supports JavaScripts, or to allow scripts, see the browser's …