Question

<script type="text/javascript">
var currstr = "?distance=10&city=Boston&criteria=shoes&size=10";
var selcity = "California"; //This can come from a drop down

var pat = new RegExp([NEEDPATTERN],"gi");
currstr.replace(pat,selcity);
</script>

I need some help replacing city=Boston in currstr with a value user selects from
drop down, right now I have hardcoded value in var selcity. I have placed a [NEEDPATTERN] marker for pattern that can be used to achieve this.

Can someone help me with this pattern?

Answer 1

Do you want to replace “Boston” specifically, or do you need to just replace the X in city=X?

For boston, you can just use simple substitution… currstr.replace('Boston', selcity)

For replacing X, you can do: currstr.replace(/city=([^&]+)/, selcity);