jquery - Replace spaces javascript -


i have created location postcode form. trouble result of postcode may contain 2 or more spaces. make sure there isn't more 1 space. in other words >1 space change 1 space.

<!doctype html> <head>     <script type="text/javascript" src="http://code.jquery.com/jquery-1.4.3.min.js"></script>     <script type="text/javascript">         function showlocation(position) {             var latitude = position.coords.latitude;             var longitude = position.coords.longitude;             $.getjson('http://www.uk-postcodes.com/latlng/' + position.coords.latitude + ',' + position.coords.longitude + '.json?callback=?', null, gotpostcode);         }          function errorhandler(err) {             if(err.code == 1) {                 alert("error: access denied!");             } else if( err.code == 2) {                 alert("error: position unavailable!");             }         }           function gotpostcode(result)         {             var postcode = result.postcode;             $("#postcodegoeshere").val(postcode);         }          function getlocation(){             if(navigator.geolocation){                 // timeout @ 60000 milliseconds (60 seconds)                 var options = {timeout:60000};                 navigator.geolocation.getcurrentposition(showlocation,                                                           errorhandler,                                                          options);             } else {                 alert("sorry, browser not support geolocation!");             }         }     </script> </head> <html>     <body>         <form>             <input type="button" onclick="getlocation();"                                    value="get location"/>         </form>         <div>             <input id='postcodegoeshere' name='xxx' type='text' value='' />         </div>     </body> </html>

use regex , replace /[ ]+/g space.

var str = "this     has    lot of     whitespaces"; var str = str.replace(/[ ]+/g, " "); console.log(str);  //this has lot of whitespaces

regex explanation:

  • [ ] character "space" enclosed in brackets readability - don't need them.
  • + repeated 1 or more times
  • /g not once, globally in whole string

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