sortJsonArrayByProp()

sortJsonArrayByProp.js

/** 
 * Sorts an array of json objects by some common property, or sub-property. 
 * @param {array} objArray 
 * @param {array|string} prop Dot-delimited string or array of (sub)properties 
 */  
function sortJsonArrayByProp(objArray, prop){  
    if (arguments.length<2){  
        throw new Error("sortJsonArrayByProp requires 2 arguments");  
    }  
    if (objArray && objArray.constructor===Array){  
        var propPath = (prop.constructor===Array) ? prop : prop.split(".");  
        objArray.sort(function(a,b){  
            for (var p in propPath){  
                if (a[propPath[p]] && b[propPath[p]]){  
                    a = a[propPath[p]];  
                    b = b[propPath[p]];  
                }  
            }  
            return ( (a < b) ? -1 : ((a > b) ? 1 : 0) );  
        });  
    }  
}