Question

function Convert_ONE2TWO()
{
    var arrTWO = new Array( "a", "e", "i");
    var arrONE = new Array( "A", "E", "I");
    str=document.frmConvert.txtONE.value; //input from ONE
    for (i=0;i<3;i++) //Loop for all letters
        {
        strTemp=new RegExp(arrONE[i], "ig");
        str=str.replace(strTemp,arrTWO[i]); //Replacing
        }
    document.frmConvert.txtTWO.value=str.toString(); //output to TWO
}

<form name="frmConvert" action="" method="get">
<textarea rows="5" cols="90" name="txtONE"></textarea>
<input name="btnConvertg" value="Create TWO" onclick="Convert_ONE2TWO();" type="Button">
<textarea rows="5" cols="90" name="txtTWO"></textarea>
</form>

I’m using this code. But, now got a problem. If the given text contains both upper case and lower case letters and if I want to change them to different values, for example:

    var arrTWO = new Array( "11", "12", "21", "22", "31", "33");
    var arrONE = new Array( "1A", "1a", "2E", "2e", "3I", "3i");

It’s giving same value for both cases. Please guide me.

Answer 1

Your regex uses the flags ig – the i there is for “Ignore case”.

Just remove the i and it will become case sensitive.