Mirrors/lodash
1
0
Fork 0
mirror of https://github.com/whoisclebs/lodash.git synced 2026-02-06 01:47:48 +00:00
Code Issues Packages Projects Releases Wiki Activity

Issue #225, adding _.union, _.difference, to complement _.without and _.intersection.

Browse Source
This commit is contained in:
Jeremy Ashkenas
2011-07-12 16:48:30 -04:00
parent 942d63129b
commit 0ec859a142
2 changed files with 29 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
test/arrays.js
View File

@@ -65,14 +65,24 @@ $(document).ready(function() {
equals(result.join(', '), '1, 2, 3, 4', 'works on an arguments object');
});
test("arrays: intersect", function() {
test("arrays: intersection", function() {
var stooges = ['moe', 'curly', 'larry'], leaders = ['moe', 'groucho'];
equals(_.intersect(stooges, leaders).join(''), 'moe', 'can take the set intersection of two arrays');
equals(_(stooges).intersect(leaders).join(''), 'moe', 'can perform an OO-style intersection');
var result = (function(){ return _.intersect(arguments, leaders); })('moe', 'curly', 'larry');
equals(_.intersection(stooges, leaders).join(''), 'moe', 'can take the set intersection of two arrays');
equals(_(stooges).intersection(leaders).join(''), 'moe', 'can perform an OO-style intersection');
var result = (function(){ return _.intersection(arguments, leaders); })('moe', 'curly', 'larry');
equals(result.join(''), 'moe', 'works on an arguments object');
});
test("arrays: union", function() {
var result = _.union([1, 2, 3], [2, 30, 1], [1, 40]);
equals(result.join(' '), '1 2 3 30 40', 'takes the union of a list of arrays');
});
test("arrays: difference", function() {
var result = _.difference([1, 2, 3], [2, 30, 40]);
equals(result.join(' '), '1 3', 'takes the difference of two arrays');
});
test('arrays: zip', function() {
var names = ['moe', 'larry', 'curly'], ages = [30, 40, 50], leaders = [true];
var stooges = _.zip(names, ages, leaders);