Javascript truncate text (middle)

truncate.js

truncate('Javascript ile metni ortadan bölme',10,'...');
// output : Java...lme

//unminified
var truncate = function (fullStr, strLen, separator) {
    if (fullStr.length <= strLen) return fullStr;
    
    separator = separator || '...';
    
    var sepLen = separator.length,
        charsToShow = strLen - sepLen,
        frontChars = Math.ceil(charsToShow/2),
        backChars = Math.floor(charsToShow/2);
    
    return fullStr.substr(0, frontChars) + separator + fullStr.substr(fullStr.length - backChars);
};


//minified
function truncate(a,b,c){if(a.length<=b)return a;c=c||"...";var d=b-c.length;b=Math.ceil(d/2);d=Math.floor(d/2);return a.substr(0,b)+c+a.substr(a.length-d)};