Notice
Recent Posts
Recent Comments
Link
| 일 | 월 | 화 | 수 | 목 | 금 | 토 |
|---|---|---|---|---|---|---|
| 1 | ||||||
| 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| 9 | 10 | 11 | 12 | 13 | 14 | 15 |
| 16 | 17 | 18 | 19 | 20 | 21 | 22 |
| 23 | 24 | 25 | 26 | 27 | 28 |
Tags
- yet
- node
- TypingEffect
- node.js
- innerText
- nodeValue
- Event
- es6
- Empty
- Dom
- for loop
- beforeinput
- keyup
- a11y
- Review
- HTML
- UI
- js
- CSS
- keyboardEvent
- javascript
- react
- Temporal dead zone
- ES5
- modal
- textContent
- addEventListener
- innerHTML
- dotenv
- css:position
Archives
- Today
- Total
the murmurous sea
(Q)Is null a primitive data type in JS? 본문
About null.
https://developer.mozilla.org/en-US/docs/Glossary/Primitive
Primitive
In JavaScript, a primitive (primitive value, primitive data type) is data that is not an object and has no methods. There are 6 primitive data types: string, number, bigint, boolean, undefined, and symbol. There also is null, which is seemingly primitive
developer.mozilla.org
"There also is null, which is seemingly primitive, but indeed is a special case for every Object: and any structured type is derived from null by the Prototype Chain."
but I saw many people count null as one of the primitive data. include Traversy media.
https://www.youtube.com/watch?v=hdI2bqOjy3c&list=PLillGF-RfqbbnEGy3ROiLWk7JMCuSyQtX&index=1
'#dev > undone Q' 카테고리의 다른 글
| async vs. fetch (0) | 2020.06.25 |
|---|---|
| RegExp (0) | 2020.06.24 |
| JS ES6: Promise vs. Async await (0) | 2020.06.15 |
| JS ES5: strict / non-strict(sloppy) mode (0) | 2020.06.10 |
| JS OOP: (0) | 2020.06.09 |
Comments