gaspersic/freeCodeCamp
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Fix example comment spacings (#23792)

Browse Source
This commit is contained in:
Eric Jae-Min Joo
2018-11-30 07:17:42 -05:00
committed by Manish Giri
parent f169c1df26
commit 521138726b
1 changed files with 13 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
guide/english/javascript/logical-operators/index.md
View File

@ -13,13 +13,13 @@ If the first evaluates as ["falsy"](https://developer.mozilla.org/en-US/docs/Glo
When only involving boolean values (either `true` or `false`), it returns true if only if both expressions are true. If one or both expressions are false, the entire statement will return false. When only involving boolean values (either `true` or `false`), it returns true if only if both expressions are true. If one or both expressions are false, the entire statement will return false.
```js ```js
true && true //returns the second value, true true && true //returns the second value, true
true && false //returns the second value, false true && false //returns the second value, false
false && false //returns the first value, false false && false //returns the first value, false
123 && 'abc' // returns the second value, 'abc' 123 && 'abc' //returns the second value, 'abc'
'abc' && null //returns the second value, null 'abc' && null //returns the second value, null
undefined && 'abc' //returns the first value, undefined undefined && 'abc' //returns the first value, undefined
0 && false //returns the first value, 0 0 && false //returns the first value, 0
``` ```
#### Logical OR ( || ) #### Logical OR ( || )
@ -28,13 +28,13 @@ The OR operator compares two expressions. If the first evaluates as "falsy", the
When only involving boolean values (either `true` or `false`), it returns true if either expression is true. Both expressions can be true, but only one is needed to get true as a result. When only involving boolean values (either `true` or `false`), it returns true if either expression is true. Both expressions can be true, but only one is needed to get true as a result.
```js ```js
true || true //returns the first value, true true || true //returns the first value, true
true || false //returns the first value, true true || false //returns the first value, true
false || false //returns the second value, false false || false //returns the second value, false
123 || 'abc' // returns the first value, 123 123 || 'abc' //returns the first value, 123
'abc' || null //returns the first value, 'abc' 'abc' || null //returns the first value, 'abc'
undefined || 'abc' //returns the second value, 'abc' undefined || 'abc' //returns the second value, 'abc'
0 || false //returns the second value, false 0 || false //returns the second value, false
``` ```
#### Short-circuit evaluation #### Short-circuit evaluation
&& and || behave as a short-circuit operators. && and || behave as a short-circuit operators.