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Added advanced increment & decrement (#25680)

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syntax and examples
This commit is contained in:
Jacobmpp
2018-10-23 13:34:01 -05:00
committed by Paul Gamble
parent e1d98e3402
commit 322e896b32
1 changed files with 12 additions and 2 deletions
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14
guide/english/javascript/arithmetic-operation/index.md
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@ -87,7 +87,7 @@ _Hint:_ There is a handy <a href='https://developer.mozilla.org/en-US/docs/Web/J
**Syntax**
`a++ or ++a`
`a++, ++a or a+=`
**Usage**
@ -98,12 +98,17 @@ _Hint:_ There is a handy <a href='https://developer.mozilla.org/en-US/docs/Web/J
// Prefix
var a = 2;
b = ++a; // a = 3, b = 3
// Advanced
var a = 4;
var b = 5;
a += b; //a = 9, b = 5
## Decrement
**Syntax**
`a-- or --a`
`a--, --a or a-=`
**Usage**
@ -114,6 +119,11 @@ _Hint:_ There is a handy <a href='https://developer.mozilla.org/en-US/docs/Web/J
// Prefix
var a = 2;
b = --a; // a = 1, b = 1
// Advanced
var a = 9;
var b = 4;
a -= b; //a = 5, b = 4
_!Important!_ As you can see, you **cannot** perform any sort of operations on `Infinity`.
Source: The amazing <a href='https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Arithmetic_Operators' target='_blank' rel='nofollow'>MDN</a>.