FAQ   JavaScript FAQ


Topic Replies Views Activity
About the JavaScript FAQ category
1 926 January 22, 2021
Why can't I use crewMember.name?
q-a
110 23547 July 5, 2022
How would you know when to use factory functions?
25 17241 February 15, 2022
How does bounceBubbles() work?
48 262666 April 27, 2022
Is Javascript case sensitive?
q-a
28 198650 June 17, 2022
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>?
q-a
10 8143 April 15, 2022
Why would the length of a sentence be useful to know?
introduction ,  q-a
38 55119 April 8, 2022
Do I need to use a semicolon?
q-a
19 124217 April 15, 2022
How could I use a switch statement for this lesson?
q-a
120 14556 April 13, 2022
Why do I need a setter, if I am using _ to not have the property changed by others?
32 15120 February 26, 2022
Clarifying Arrow Function Notation
functions
54 13914 December 30, 2021
Do we have to always use {} when creating a variable through destructuring?
q-a
19 11861 December 23, 2021
What are advanced objects?
q-a
7 17989 April 20, 2022
Why do I need to use `return`?
functions ,  q-a
91 26096 July 4, 2022
FAQ: Why can't I console log mutualfollowers.push()
59 38883 May 5, 2022
How do I handle JS (or other computer science problems) I'm not sure how to solve?
q-a
5 6633 April 9, 2022
What is the difference between printing `3 + 4` and `'3 + 4'`?
introduction
50 45651 March 30, 2022
What is the difference between triple equals, ===, and double equals, ==, in JavaScript?
q-a
4 29734 September 8, 2021
Why do we need parentheses around multi-line JSX expressions?
q-a ,  intro-to-jsx
8 15390 July 4, 2022
What does this ${} syntax do?
q-a
37 42638 May 20, 2022
Is it best practice to use string concatenation or string interpolation? Why?
q-a
4 9962 December 23, 2021
Does `this` always refer to an object?
q-a
27 11836 March 22, 2022
When should we use callbacks vs directly calling a function?
q-a
2 27244 December 9, 2021
What's the difference between React and ReactDOM?
q-a
3 22799 March 26, 2021
Why do Arrow functions exist and how could you use them in objects if you wanted to?
28 18770 April 21, 2022
What are other uses of functions as data?
q-a
14 14123 April 15, 2021
Is property value shorthand in objects compatible with all browsers?
11 10252 March 2, 2021
What is the difference between document.write and console.log?
q-a
32 136412 June 2, 2022
Whats the different between two (`==`) and three (`===`) equal signs?
conditionals ,  q-a
38 38274 March 14, 2022
Why do we write `if(sale)` instead of `if(sale===true)`?
conditionals ,  q-a
44 30598 January 16, 2022