JS utilities

query-params.js

// Get query parameters with js

var QueryParameters = {

    all: function() {
        var result = {}
        location.search.substr(1).split("&").forEach(function (item) {
            var keyValue = item.split("=")
            result[keyValue[0]] = decodeURIComponent(keyValue[1])
        })
        return result
    },

    get: function(name) {
        var params = this.all()
        return params[ name ]
    }

}

sorter.js

var sorter = {
    sortReverse: function( l, k ){
        return this.sort( l, k, true )
    },
    sort: function( l, k, r ){
        if ( !l || !l.sort || !k )
            return l
        var orderFields = typeof k === 'string' ? [k] : k
        return l.sort(function(a, b){
            for ( var i=0; i<orderFields.length; i++ ){
                var f = orderFields[i]
                var v1 = a[f], v2 = b[f]
                if ( v1 === v2 ) continue
                var rr = typeof v1 === 'boolean' ? !r : r
                return (rr ? v1 < v2 : v1 > v2) ? 1 : -1
            }
            return 0
        })
    }
}

query-params.js

Usage examples:

/** URL http://localhost/?myParam=10&mySecondParam=20 */

var my_param = QueryParameters.get( "myParam" )
console.log( my_param )
// output: "10"

var all_params = QueryParameters.get( "myParam" )
console.log( all_params )
// output: {"myParam": "10","mySecondParam":"20"}

sorter.js

Usage examples:

var list = [{"name": "Maria"}, {"name": "Andre"}, {"name": "Jose"}]
var result = sorter.sort( list, "name" )
console.log( result )
// output: [{"name": "Andre"}, {"name": "Jose"}, {"name": "Maria"}]

var list = [{"name": "Maria"}, {"name": "Andre"}, {"name": "Jose"}]
var result = sorter.sortReverse( list, "name" )
console.log( result )
// output: [{"name": "Maria"}, {"name": "Jose"}, {"name": "Andre"}]

var list = [{"name": "Maria", "age": "40"}, {"name": "Andre", "age": "50"}, {"name": "Andre", "age": "40"}]
var result = sorter.sort( list, ["name", "age"] )
console.log( result )
// output: [ {"name": "Andre", "age": "40"}, {"name": "Andre", "age": "50"},{"name": "Maria", "age": "40"}]