How to convert Persian and Arabic numbers inside a string to English using JavaScript?

Question

How can I convert Persian/Arabic numbers to English numbers with a simple function?

arabicNumbers = [\"١\", \"٢\", \"٣\", \"٤\", \"٥\", \"٦\", \"٧\", \"٨\",          


        

Answer 1

You could do something like this that uses the index of the number within the string to do the conversion:

// Returns -1 if `fromNum` is not a numeric character
function convertNumber(fromNum) {
    var persianNums = '۰١۲۳۴۵۶۷۸۹';
    return persianNums.indexOf(fromNum);
}

var testNum = '۴';
alert("number is: " + convertNumber(testNum));

Or map using a object like this:

// Returns -1 if `fromNum` is not a numeric character
function convertNumber(fromNum) {
    var result;
    var arabicMap = {
        '٩': 9,
        '٨': 8,
        '٧': 7,
        '٦': 6,
        '٥': 5,
        '٤': 4,
        '٣': 3,
        '٢': 2,
        '١': 1,
        '٠': 0
    };
    result = arabicMap[fromNum];
    if (result === undefined) {
        result = -1;
    }
    return result;
}

var testNum = '٤';
alert("number is: " + convertNumber(testNum));