javascript - Sort array in Czech, localeCompare - Stack Overflow

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I have problem sorting an array with Czech names. It works ok for the normal characters but not for the special ones. 'Sb', 'St', 'Šk' ; the special Š should be after the other two words, but it end it up in different order. Here is a simple code.

var tmpArr = ['Sb', 'BE', 'De', 'CS', 'Au', 'Šk', 'De', 'St', 'Ci', 'št'];

function mySort(s1, s2) {
return s1.localeCompare(s2 ,'cz', {sensitivity: "variant"});
}

var sorted = tmpArr.sort(mySort);

console.log(tmpArr);

for(var i in sorted){
console.log(sorted[i]);
}

This should be also working in all browsers.

I have problem sorting an array with Czech names. It works ok for the normal characters but not for the special ones. 'Sb', 'St', 'Šk' ; the special Š should be after the other two words, but it end it up in different order. Here is a simple code.

var tmpArr = ['Sb', 'BE', 'De', 'CS', 'Au', 'Šk', 'De', 'St', 'Ci', 'št'];

function mySort(s1, s2) {
return s1.localeCompare(s2 ,'cz', {sensitivity: "variant"});
}

var sorted = tmpArr.sort(mySort);

console.log(tmpArr);

for(var i in sorted){
console.log(sorted[i]);
}

This should be also working in all browsers.

• javascript
• jquery
• html
• sorting

Share Improve this question Follow edited Jul 16, 2013 at 13:39 sla55er asked Jul 9, 2013 at 7:08 sla55ersla55er 81111 gold badge1111 silver badges1717 bronze badges 1

• 2 developer.mozilla/en-US/docs/Web/JavaScript/Reference/… – Karoly Horvath Commented Jul 9, 2013 at 7:17

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1 Answer 1

Sorted by: Reset to default 9

Dobrý Den,

as this states

https://developer.mozilla/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/localeCompare

advanced options for locale pare are not implemented in mon browsers.

If you need this only for Chech language maybe it would be best idea to implement your own string parison using characters map:

var charMapL = " 0123456789aábcčdďeéěfghiíjklmnňoópqrřsštťuúůvwxyýzž";
var charMapU = " 0123456789AÁBCČDĎEÉĚFGHIÍJKLMNŇOÓPQRŘSŠTŤUÚŮVWXYÝZŽ";
var charsOrder = {};
for(var i in charMapL.split('')) {
    charsOrder[charMapL[i]] = parseInt(i);
    charsOrder[charMapU[i]] = parseInt(i);
}

function mySort(s1, s2) {
    var idx = 0;
    while ( (idx < s1.length) && (idx < s2.length) && (charsOrder[s1[idx]] == charsOrder[s2[idx]])) {
        idx ++;
    }
    if ((idx == s1.length) && (idx == s2.length)) return 0;
    if (idx == s1.length) return 1;
    if (idx == s2.length) return -1;
    return charsOrder[s1[idx]] > charsOrder[s2[idx]] ? 1 : (charsOrder[s1[idx]] < charsOrder[s2[idx]] ? -1 : 0);
}

console.log(tmpArr);
tmpArr.sort();
console.log(tmpArr);
tmpArr.sort(mySort);
console.log(tmpArr);

http://jsfiddle/GNNBc/1/

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