mirror of
https://github.com/whoisclebs/lodash.git
synced 2026-02-14 12:47:49 +00:00
Update deps.
This commit is contained in:
126
vendor/underscore/test/arrays.js
vendored
126
vendor/underscore/test/arrays.js
vendored
@@ -8,35 +8,51 @@
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deepEqual(_.first([1, 2, 3], 0), [], 'can pass an index to first');
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deepEqual(_.first([1, 2, 3], 2), [1, 2], 'can pass an index to first');
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deepEqual(_.first([1, 2, 3], 5), [1, 2, 3], 'can pass an index to first');
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var result = (function(){ return _.first(arguments); })(4, 3, 2, 1);
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var result = (function(){ return _.first(arguments); }(4, 3, 2, 1));
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equal(result, 4, 'works on an arguments object.');
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result = _.map([[1, 2, 3], [1, 2, 3]], _.first);
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deepEqual(result, [1, 1], 'works well with _.map');
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result = (function() { return _.take([1, 2, 3], 2); })();
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deepEqual(result, [1, 2], 'aliased as take');
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result = (function() { return _.first([1, 2, 3], 2); }());
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deepEqual(result, [1, 2]);
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equal(_.first(null), undefined, 'handles nulls');
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strictEqual(_.first([1, 2, 3], -1).length, 0);
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});
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test('head', function() {
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strictEqual(_.first, _.head, 'alias for first');
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});
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test('take', function() {
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strictEqual(_.first, _.take, 'alias for first');
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});
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test('rest', function() {
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var numbers = [1, 2, 3, 4];
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deepEqual(_.rest(numbers), [2, 3, 4], 'working rest()');
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deepEqual(_.rest(numbers, 0), [1, 2, 3, 4], 'working rest(0)');
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deepEqual(_.rest(numbers, 2), [3, 4], 'rest can take an index');
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var result = (function(){ return _(arguments).tail(); })(1, 2, 3, 4);
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deepEqual(result, [2, 3, 4], 'aliased as tail and works on arguments object');
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var result = (function(){ return _(arguments).rest(); }(1, 2, 3, 4));
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deepEqual(result, [2, 3, 4], 'works on arguments object');
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result = _.map([[1, 2, 3], [1, 2, 3]], _.rest);
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deepEqual(_.flatten(result), [2, 3, 2, 3], 'works well with _.map');
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result = (function(){ return _(arguments).drop(); })(1, 2, 3, 4);
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deepEqual(result, [2, 3, 4], 'aliased as drop and works on arguments object');
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result = (function(){ return _(arguments).rest(); }(1, 2, 3, 4));
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deepEqual(result, [2, 3, 4], 'works on arguments object');
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});
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test('tail', function() {
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strictEqual(_.rest, _.tail, 'alias for rest');
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});
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test('drop', function() {
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strictEqual(_.rest, _.drop, 'alias for rest');
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});
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test('initial', function() {
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deepEqual(_.initial([1, 2, 3, 4, 5]), [1, 2, 3, 4], 'working initial()');
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deepEqual(_.initial([1, 2, 3, 4], 2), [1, 2], 'initial can take an index');
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deepEqual(_.initial([1, 2, 3, 4], 6), [], 'initial can take a large index');
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var result = (function(){ return _(arguments).initial(); })(1, 2, 3, 4);
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var result = (function(){ return _(arguments).initial(); }(1, 2, 3, 4));
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deepEqual(result, [1, 2, 3], 'initial works on arguments object');
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result = _.map([[1, 2, 3], [1, 2, 3]], _.initial);
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deepEqual(_.flatten(result), [1, 2, 1, 2], 'initial works with _.map');
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@@ -47,7 +63,7 @@
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deepEqual(_.last([1, 2, 3], 0), [], 'can pass an index to last');
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deepEqual(_.last([1, 2, 3], 2), [2, 3], 'can pass an index to last');
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deepEqual(_.last([1, 2, 3], 5), [1, 2, 3], 'can pass an index to last');
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var result = (function(){ return _(arguments).last(); })(1, 2, 3, 4);
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var result = (function(){ return _(arguments).last(); }(1, 2, 3, 4));
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equal(result, 4, 'works on an arguments object');
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result = _.map([[1, 2, 3], [1, 2, 3]], _.last);
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deepEqual(result, [3, 3], 'works well with _.map');
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@@ -58,7 +74,7 @@
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test('compact', function() {
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equal(_.compact([0, 1, false, 2, false, 3]).length, 3, 'can trim out all falsy values');
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var result = (function(){ return _.compact(arguments).length; })(0, 1, false, 2, false, 3);
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var result = (function(){ return _.compact(arguments).length; }(0, 1, false, 2, false, 3));
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equal(result, 3, 'works on an arguments object');
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});
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@@ -66,7 +82,7 @@
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var list = [1, [2], [3, [[[4]]]]];
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deepEqual(_.flatten(list), [1, 2, 3, 4], 'can flatten nested arrays');
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deepEqual(_.flatten(list, true), [1, 2, 3, [[[4]]]], 'can shallowly flatten nested arrays');
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var result = (function(){ return _.flatten(arguments); })(1, [2], [3, [[[4]]]]);
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var result = (function(){ return _.flatten(arguments); }(1, [2], [3, [[[4]]]]));
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deepEqual(result, [1, 2, 3, 4], 'works on an arguments object');
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list = [[1], [2], [3], [[4]]];
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deepEqual(_.flatten(list, true), [1, 2, 3, [4]], 'can shallowly flatten arrays containing only other arrays');
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@@ -75,12 +91,12 @@
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test('without', function() {
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var list = [1, 2, 1, 0, 3, 1, 4];
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deepEqual(_.without(list, 0, 1), [2, 3, 4], 'can remove all instances of an object');
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var result = (function(){ return _.without(arguments, 0, 1); })(1, 2, 1, 0, 3, 1, 4);
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var result = (function(){ return _.without(arguments, 0, 1); }(1, 2, 1, 0, 3, 1, 4));
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deepEqual(result, [2, 3, 4], 'works on an arguments object');
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list = [{one : 1}, {two : 2}];
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ok(_.without(list, {one : 1}).length == 2, 'uses real object identity for comparisons.');
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ok(_.without(list, list[0]).length == 1, 'ditto.');
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equal(_.without(list, {one : 1}).length, 2, 'uses real object identity for comparisons.');
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equal(_.without(list, list[0]).length, 1, 'ditto.');
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});
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test('uniq', function() {
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@@ -96,13 +112,16 @@
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deepEqual(_.map(_.uniq(list, iterator), iterator), ['moe', 'curly', 'larry'], 'can find the unique values of an array using a custom iterator without specifying whether array is sorted');
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iterator = function(value) { return value +1; };
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iterator = function(value) { return value + 1; };
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list = [1, 2, 2, 3, 4, 4];
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deepEqual(_.uniq(list, true, iterator), [1, 2, 3, 4], 'iterator works with sorted array');
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var result = (function(){ return _.uniq(arguments); })(1, 2, 1, 3, 1, 4);
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var result = (function(){ return _.uniq(arguments); }(1, 2, 1, 3, 1, 4));
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deepEqual(result, [1, 2, 3, 4], 'works on an arguments object');
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var a = {}, b = {}, c = {};
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deepEqual(_.uniq([a, b, a, b, c]), [a, b, c], 'works on values that can be tested for equivalency but not ordered');
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deepEqual(_.uniq(null), []);
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var context = {};
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@@ -111,14 +130,22 @@
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strictEqual(this, context);
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strictEqual(value, 3);
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strictEqual(index, 0);
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strictEqual(array, list);
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}, context);
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deepEqual(_.uniq([{a: 1, b: 1}, {a: 1, b: 2}, {a: 1, b: 3}, {a: 2, b: 1}], 'a'), [{a: 1, b: 1}, {a: 2, b: 1}], 'can use pluck like iterator');
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deepEqual(_.uniq([{0: 1, b: 1}, {0: 1, b: 2}, {0: 1, b: 3}, {0: 2, b: 1}], 0), [{0: 1, b: 1}, {0: 2, b: 1}], 'can use falsey pluck like iterator');
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});
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test('unique', function() {
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strictEqual(_.uniq, _.unique, 'alias for uniq');
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});
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test('intersection', function() {
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var stooges = ['moe', 'curly', 'larry'], leaders = ['moe', 'groucho'];
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deepEqual(_.intersection(stooges, leaders), ['moe'], 'can take the set intersection of two arrays');
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deepEqual(_(stooges).intersection(leaders), ['moe'], 'can perform an OO-style intersection');
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var result = (function(){ return _.intersection(arguments, leaders); })('moe', 'curly', 'larry');
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var result = (function(){ return _.intersection(arguments, leaders); }('moe', 'curly', 'larry'));
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deepEqual(result, ['moe'], 'works on an arguments object');
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var theSixStooges = ['moe', 'moe', 'curly', 'curly', 'larry', 'larry'];
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deepEqual(_.intersection(theSixStooges, leaders), ['moe'], 'returns a duplicate-free array');
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@@ -140,7 +167,7 @@
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deepEqual(result, [1, 2, 3, 30, 40, [1]], 'takes the union of a list of nested arrays');
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var args = null;
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(function(){ args = arguments; })(1, 2, 3);
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(function(){ args = arguments; }(1, 2, 3));
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result = _.union(args, [2, 30, 1], [1, 40]);
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deepEqual(result, [1, 2, 3, 30, 40], 'takes the union of a list of arrays');
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@@ -177,6 +204,9 @@
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var empty = _.zip([]);
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deepEqual(empty, [], 'unzipped empty');
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deepEqual(_.zip(null), [], 'handles null');
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deepEqual(_.zip(), [], '_.zip() returns []');
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});
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test('object', function() {
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@@ -196,9 +226,8 @@
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test('indexOf', function() {
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var numbers = [1, 2, 3];
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numbers.indexOf = null;
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equal(_.indexOf(numbers, 2), 1, 'can compute indexOf, even without the native function');
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var result = (function(){ return _.indexOf(arguments, 2); })(1, 2, 3);
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equal(_.indexOf(numbers, 2), 1, 'can compute indexOf');
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var result = (function(){ return _.indexOf(arguments, 2); }(1, 2, 3));
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equal(result, 1, 'works on an arguments object');
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equal(_.indexOf(null, 2), -1, 'handles nulls properly');
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@@ -212,8 +241,12 @@
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equal(index, 3, '40 is in the list');
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numbers = [1, 40, 40, 40, 40, 40, 40, 40, 50, 60, 70]; num = 40;
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index = _.indexOf(numbers, num, true);
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equal(index, 1, '40 is in the list');
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equal(_.indexOf(numbers, num, true), 1, '40 is in the list');
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equal(_.indexOf(numbers, 6, true), -1, '6 isnt in the list');
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equal(_.indexOf([1, 2, 5, 4, 6, 7], 5, true), -1, 'sorted indexOf doesn\'t uses binary search');
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ok(_.every(['1', [], {}, null], function() {
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return _.indexOf(numbers, num, {}) === 1;
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}), 'non-nums as fromIndex make indexOf assume sorted');
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numbers = [1, 2, 3, 1, 2, 3, 1, 2, 3];
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index = _.indexOf(numbers, 2, 5);
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@@ -221,23 +254,66 @@
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index = _.indexOf([,,,], undefined);
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equal(index, 0, 'treats sparse arrays as if they were dense');
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var array = [1, 2, 3, 1, 2, 3];
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strictEqual(_.indexOf(array, 1, -3), 3, 'neg `fromIndex` starts at the right index');
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strictEqual(_.indexOf(array, 1, -2), -1, 'neg `fromIndex` starts at the right index');
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strictEqual(_.indexOf(array, 2, -3), 4);
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_.each([-6, -8, -Infinity], function(fromIndex) {
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strictEqual(_.indexOf(array, 1, fromIndex), 0);
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});
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strictEqual(_.indexOf([1, 2, 3], 1, true), 0);
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});
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test('lastIndexOf', function() {
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var numbers = [1, 0, 1];
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var falsey = [void 0, '', 0, false, NaN, null, undefined];
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equal(_.lastIndexOf(numbers, 1), 2);
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numbers = [1, 0, 1, 0, 0, 1, 0, 0, 0];
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numbers.lastIndexOf = null;
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equal(_.lastIndexOf(numbers, 1), 5, 'can compute lastIndexOf, even without the native function');
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equal(_.lastIndexOf(numbers, 0), 8, 'lastIndexOf the other element');
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var result = (function(){ return _.lastIndexOf(arguments, 1); })(1, 0, 1, 0, 0, 1, 0, 0, 0);
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var result = (function(){ return _.lastIndexOf(arguments, 1); }(1, 0, 1, 0, 0, 1, 0, 0, 0));
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equal(result, 5, 'works on an arguments object');
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equal(_.lastIndexOf(null, 2), -1, 'handles nulls properly');
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numbers = [1, 2, 3, 1, 2, 3, 1, 2, 3];
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var index = _.lastIndexOf(numbers, 2, 2);
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equal(index, 1, 'supports the fromIndex argument');
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var array = [1, 2, 3, 1, 2, 3];
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strictEqual(_.lastIndexOf(array, 1, 0), 0, 'starts at the correct from idx');
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strictEqual(_.lastIndexOf(array, 3), 5, 'should return the index of the last matched value');
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strictEqual(_.lastIndexOf(array, 4), -1, 'should return `-1` for an unmatched value');
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strictEqual(_.lastIndexOf(array, 1, 2), 0, 'should work with a positive `fromIndex`');
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_.each([6, 8, Math.pow(2, 32), Infinity], function(fromIndex) {
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strictEqual(_.lastIndexOf(array, undefined, fromIndex), -1);
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strictEqual(_.lastIndexOf(array, 1, fromIndex), 3);
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strictEqual(_.lastIndexOf(array, '', fromIndex), -1);
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});
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var expected = _.map(falsey, function(value) {
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return typeof value == 'number' ? -1 : 5;
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});
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var actual = _.map(falsey, function(fromIndex) {
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return _.lastIndexOf(array, 3, fromIndex);
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});
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deepEqual(actual, expected, 'should treat falsey `fromIndex` values, except `0` and `NaN`, as `array.length`');
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strictEqual(_.lastIndexOf(array, 3, '1'), 5, 'should treat non-number `fromIndex` values as `array.length`');
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strictEqual(_.lastIndexOf(array, 3, true), 5, 'should treat non-number `fromIndex` values as `array.length`');
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strictEqual(_.lastIndexOf(array, 2, -3), 1, 'should work with a negative `fromIndex`');
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strictEqual(_.lastIndexOf(array, 1, -3), 3, 'neg `fromIndex` starts at the right index');
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deepEqual(_.map([-6, -8, -Infinity], function(fromIndex) {
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return _.lastIndexOf(array, 1, fromIndex);
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}), [0, -1, -1]);
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});
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test('range', function() {
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@@ -251,4 +327,4 @@
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deepEqual(_.range(0, -10, -1), [0, -1, -2, -3, -4, -5, -6, -7, -8, -9], 'final example in the Python docs');
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});
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})();
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}());
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