JavaScript
[].map||(Array.prototype.map=function(a){for(var b=this,c=b.length,d=[],e=0,f;e<b;)d[e]=e in b?a.call(arguments[1],b[e],e++,b):f;return d})
function dynamicSortMultiple() {
var props=[];
for(var i=0; i < arguments.length; i++){
var splittedArg=arguments[i].split(/ +/);
props[props.length]=[splittedArg[0], (splittedArg[1] ? splittedArg[1].toUpperCase() : "ASC")];
}
return function (obj1, obj2) {
var i = 0, result = 0, numberOfProperties = props.length ;
while(result === 0 && i < numberOfProperties) {
result = dynamicSort(props[i][0], props[i][1])(obj1, obj2);
i++;
}
return result;
}
}
function dynamicSort(property, isAscDesc) {
return function (obj1,obj2) {
if(isAscDesc==="DESC"){
return ((obj1[property] > obj2[property]) ? (-1) : ((obj1[property] < obj2[property]) ? (1) : (0)));
}
/*else, if isAscDesc==="ASC"*/
return ((obj1[property] > obj2[property]) ? (1) : ((obj1[property] < obj2[property]) ? (-1) : (0)));
}
}
var arr = [
{a:"a",b:"a",c:"a"},
{a:"b",b:"c",c:"b"},
{a:"b",b:"a",c:"a"},
{a:"b",b:"a",c:"b"},
{a:"b",b:"b",c:"a"},
{a:"b",b:"b",c:"b"},
{a:"b",b:"c",c:"a"},
{a:"b",b:"b",c:"b"},
{a:"b",b:"c",c:"a"},
{a:"b",b:"b",c:"b"},
{a:"b",b:"c",c:"a"},
{a:"c",b:"d",c:"b"},
{a:"d",b:"b",c:"b"},
{a:"c",b:"b",c:"d"},
{a:"x",b:"c",c:"a"}];
document.getElementById("res").innerText = "result:\na b c\n-----\n" + arr
.sort(dynamicSortMultiple("c DESC","b","a ASC"))
.map(function(val, i) {return [val["a"], val["b"], val["c"]].join(" ")})
.join("\n");