javascript - What is /i in navigator.userAgent.match -


i'm curious /i in:

var ismobile = {     android: function() {         return navigator.useragent.match(/android/i);     },     blackberry: function() {         return navigator.useragent.match(/blackberry/i);     },     ios: function() {         return navigator.useragent.match(/iphone|ipad|ipod/i);     },     opera: function() {         return navigator.useragent.match(/opera mini/i);     },     windows: function() {         return navigator.useragent.match(/iemobile/i);     },     any: function() {         return (ismobile.android() || ismobile.blackberry() || ismobile.ios() || ismobile.opera() || ismobile.windows());     }}; }

source: https://www.sitepoint.com/navigator-useragent-mobiles-including-ipad/

could tell me /i exactly? i've searched lot of websites things navigator.useragent.match none explain /i is, /g

/heregoesregex/flags literal regular expression in many languages (including javascript). after last slash can specify flags regular expression. list of available flags javascript includes:

  • g global search.
  • i case-insensitive search.
  • m multi-line search.
  • y "sticky" search matches starting @ current position in target string

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