FAQ   JavaScript FAQ


Topic Replies Activity
About the JavaScript FAQ category 1 December 30, 2017
FAQ: Welcome to Codecademy! - Welcome to Codecademy! 8 October 2, 2019
FAQ: Welcome to Codecademy! - Write some code! 12 October 2, 2019
How does bounceBubbles() work? 21 December 5, 2019
Is Javascript case sensitive? 6 January 10, 2020
What's the difference between React and ReactDOM? 1 January 18, 2019
How would you know when to use factory functions? 5 August 4, 2019
Why do we need parentheses around multi-line JSX expressions? 3 October 15, 2019
Do we have to always use {} when creating a variable through destructuring? 11 January 16, 2020
If I give my variables an alias, can I use both the variable's alias and its original name? 1 December 14, 2018
FAQ: Objects - Pass By Reference 36 December 5, 2019
What are falsy values in JS? What are truthy values in JS? 1 September 30, 2018
Do I need to use a semicolon? 7 December 22, 2019
Do I have to use valid HTML tags when creating JSX elements? 1 January 18, 2019
Why do I need to create a variable to store a module that is imported using require()? 1 November 28, 2018
FAQ: Iterators - The .map() Method 15 January 21, 2020
What does the send() method do? 1 March 7, 2019
FAQ: Browser Compatibility and Transpilation - Build 15 December 24, 2019
FAQ: Welcome to Codecademy! - Onward 7 March 21, 2019
Why can't I use crewMember.name? 58 December 19, 2019
FAQ: Functions - Function Declarations 18 December 19, 2019
FAQ: Loops - Nested Loops 40 November 20, 2019
Why use a variable as the first argument in ReactDOM.render() instead of a JSX expression? 2 November 2, 2019
FAQ: Intermediate JavaScript Modules - Import Named Imports 31 January 9, 2020
Why do I need a setter, if I am using _ to not have the property changed by others? 8 April 18, 2019
When should I use the defer attribute on a <script> element in the <head> vs. using a <script> element at the end of the <body>? 1 June 7, 2019
Can I create my own JSX element attributes? 2 October 15, 2019
What other types of responses does the XMLHttpRequest API support? 1 March 7, 2019
Why would I want to combine named exports with default exports? 9 September 5, 2019
What are other uses of functions as data? 4 May 2, 2019