javascript - Search on string and capture value of specific HTML attribute -


i need regex src value of following strings, considering single, double , no quotes.

with double quotes:

var = '<script class="anyclass" src="anyfile.js" id="anyid">'; var b = '<script class="anyclass" src="anyfile.js">'; var c = '<script src="anyfile.js" id="anyid">'; var d = '<script src="anyfile.js">';

with single quotes:

var e = "<script class='anyclass' src='anyfile.js' id='anyid'>"; var f = "<script class='anyclass' src='anyfile.js'>"; var g = "<script src='anyfile.js' id='anyid'>"; var h = "<script src='anyfile.js'>";

without quotes:

var i= "<script class=anyclass src=anyfile.js id=anyid>"; var j= "<script class=anyclass src=anyfile.js>"; var k= "<script src=anyfile.js id=anyid>"; var l= "<script src=anyfile.js>";

expected match/return: 

anyfile.js

i have poor looking solution split:

var file = ""; var match = 'src="'; if(a.indexof(match)>=0){   file = a.split(match);   file = file[1];   file = file.split('.js"');   file = file[0] + ".js"; } else{   match = "src='";   if(a.indexof(match)>=0){     file = a.split(match);     file = file[1];     file = file.split(".js'");     file = file[0] + ".js";   }   else{     match = "src=";     if(a.indexof(match)>=0){       file = a.split(match);       file = file[1];       file = file.split('.js');       file = file[0] + ".js";     }     else {     file = "no match";     }   } }

but can match wrong src attributes, need regex.

any appreciated.

solution (special rajesh)

var = "<script class='anyclass' src='anyfile.js' id='anyid'>"; var b = '<script class="anyclass" src="anyfile.js">'; var c = '<script src="anyfile.js" id="anyid">'; var d = '<script src="anyfile.js">';  var e = "<script class='anyclass' src='anyfile.js' id='anyid'>"; var f = "<script class='anyclass' src='anyfile.js'>"; var g = "<script src='anyfile.js' id='anyid'>"; var h = "<script src='anyfile.js'>";  var i= "<script class=anyclass src=anyfile.js id=anyid>"; var j= "<script class=anyclass src=anyfile.js>"; var k= "<script src=anyfile.js id=anyid>"; var l= "<script src=anyfile.js>"; var l= "<script src=anyfile.js>";  function getsrc(str){   var regex = /src=["']*[^"' >]+/;   var match = str.match(regex);   if(match!==null){     match = match[0];     var replaceregex = /src=["' ]*/;     match = match.replace(replaceregex, "")   }   else{     match = "no match";   }   console.log(match); }  [a,b,c,d,e,f,g,h,i,j,k,l].foreach(getsrc)

you can try this:

logic:

  • search pattern src= followed single/double quotes [optional] followed thats not single/double quotes.
  • this yield src="anyfile.js.
  • now replace initials i.e. src= followed optional quote.

regex version

var = '<script class="anyclass" src="anyfile.js" id="anyid">';  var b = '<script class="anyclass" src="anyfile.js">';  var c = '<script src="anyfile.js" id="anyid">';  var d = '<script src="anyfile.js">';  var i= "<script class=anyclass src=anyfile.js id=anyid>";  var j= "<script class=anyclass src=anyfile.js>";  var k= "<script src=anyfile.js id=anyid>";  var l= "<script src=anyfile.js>";    function getsrc(str){    var regex = /src=["']*[^"' >]+/;    var match = str.match(regex)[0];    var replaceregex = /src=["' ]*/;    match = match.replace(replaceregex, "")    console.log(match)  }    [a,b,c,d,i,j,k,l].foreach(getsrc)


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