JavaScript RegExp ?= Quantifier
Clash Royale CLAN TAG#URR8PPP
<!--
main_leaderboard, all: [728,90][970,90][320,50][468,60]-->
JavaScript RegExp ?= Quantifier
❮ JavaScript RegExp Object
Example
Do a global search for "is" followed by " all":
var str = "Is this all there is";
var patt1 = /is(?= all)/g;
<!--
The marked text below shows where the expression gets a match:
Is this all there is
Try it Yourself »
Definition and Usage
The ?=n quantifier matches any string that is followed by a specific string n.
Tip: Use the ?!n
quantifier to match any string that is NOT followed by a specific string n.
Browser Support
| Expression | |||||
|---|---|---|---|---|---|
| ?= | Yes | Yes | Yes | Yes | Yes |
Syntax
new RegExp("regexp(?=n)")
or
/regexp(?=n)/
Syntax with modifiers
new RegExp("regexp(?=n)", "g")
or simply:
/regexp(?=n)/g❮ JavaScript RegExp Object
