I have been using this library in my google apps script, particually the Unique function.
So far this has done what I require, if I have two arrays like:
[1,2,3] and [2,3,4], I have been using array1.concat(array2) and the using the unique function, which will return [1,2,3,4].
How can I retrieve unique values which in my example will be [1,4] ?
Try following function, it will return object of distinct, unique and repeated elements.
var a = [1,2,3], b = [2,3,4];
var c = a.concat(b);
function arrays( array ) {
var distinct = [], unique = [], repeated = [], repeat = [];
array.forEach(function(v,i,arr) {
arr.splice(i,1);
( distinct.indexOf(v) === -1 ) ? distinct.push(v) : repeat.push(v);
( arr.indexOf(v) === -1 ) ? unique.push(v) : void 0;
arr.splice(i,0,v);
});
repeat.forEach(function(v,i,arr) {
( repeated.indexOf(v) === -1 ) ? repeated.push(v) : void 0;
});
repeat = [];
return {
"distinct" : distinct,
"unique" : unique,
"repeated" : repeated
};
}
console.log(arrays(c));
In your case you will get your desired result like console.log(arrays(c).unique) [1,4]