I would like to do something like this:

if (idCity == 'AB*') {
   //  do something
}

In other words. I want to check that idCity starts with the string "AB". How can I do this in Javascript?

I would like to do something like this:

if (idCity == 'AB*') {
   //  do something
}

In other words. I want to check that idCity starts with the string "AB". How can I do this in Javascript?

• javascript

Share Improve this question Follow asked Jan 8, 2012 at 8:06 Samantha J T StarSamantha J T Star 33k8989 gold badges257257 silver badges441441 bronze badges 3

• See stackoverflow./questions/646628/javascript-startswith – Joachim Isaksson Commented Jan 8, 2012 at 8:13
• possible duplicate of javascript - check if string begins with something? – Felix Kling Commented Jan 8, 2012 at 9:10
• How about reading through the list of string manipulation methods until you find one that seems to do the trick? – nnnnnn Commented Jan 8, 2012 at 9:20

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4 Answers 4

Sorted by: Reset to default 3

if (idCity.substr(0,2) == 'AB') {
   alert('the string starts with AB');
}

if(idCity.indexOf('AB') == 0)
{
  alert('the string starts with AB');
}

if(idCity.substr(0,2)=='AB'){
}

If 'AB' is not constant string, you may use

if(idCity.substr(0,start.length)==start){
}

idCity = 'AB767 something';

function startWith(searchString){
    if (idCity.indexOf(searchString) == 0){
         return true;
    }
    return false;
}