performance/models/legacy/macro/_Falcor.js
function allUnique(arr) {
    var hash = {},
        index,
        len;

    for (index = 0, len = arr.length; index < len; index++) {
        if (hash[arr[index]]) {
            return false;
        }
        hash[arr[index]] = true;
    }
    return true;
}
function allUnique(arr) {
    var hash = {},
        index,
        len;

    for (index = 0, len = arr.length; index < len; index++) {
        if (hash[arr[index]]) {
            return false;
        }
        hash[arr[index]] = true;
    }
    return true;
}
function allUnique ( arr ) { var hash = { } , index , len ; for ( index = 0 , len = arr . length ; index < len ; index ++ ) { if ( hash [ arr [ index ] ] ) { return false ; } hash [ arr [ index ] ] = true ; } return true ; }
allUnique
return true if every number in an array is unique
allUnique return true if every number in an array is unique