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Make _.chunk default size to 1 instead of 0.

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John-David Dalton
2016-04-01 17:21:16 -07:00
parent 930b034da5
commit f599c4817a
2 changed files with 32 additions and 7 deletions
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27
test/test.js
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@@ -2385,14 +2385,28 @@
assert.deepEqual(actual, [[0, 1, 2, 3], [4, 5]]);
});
QUnit.test('should treat falsey `size` values, except `undefined`, as `0`', function(assert) {
assert.expect(1);
var expected = lodashStable.map(falsey, function(value) {
return value === undefined ? [[0], [1], [2], [3], [4], [5]] : [];
});
var actual = lodashStable.map(falsey, function(size, index) {
return index ? _.chunk(array, size) : _.chunk(array);
});
assert.deepEqual(actual, expected);
});
QUnit.test('should ensure the minimum `size` is `0`', function(assert) {
assert.expect(1);
var values = falsey.concat(-1, -Infinity),
var values = lodashStable.reject(falsey, lodashStable.isUndefined).concat(-1, -Infinity),
expected = lodashStable.map(values, alwaysEmptyArray);
var actual = lodashStable.map(values, function(value, index) {
return index ? _.chunk(array, value) : _.chunk(array);
var actual = lodashStable.map(values, function(n) {
return _.chunk(array, n);
});
assert.deepEqual(actual, expected);
@@ -2403,6 +2417,13 @@
assert.deepEqual(_.chunk(array, array.length / 4), [[0], [1], [2], [3], [4], [5]]);
});
QUnit.test('should work as an iteratee for methods like `_.map`', function(assert) {
assert.expect(1);
var actual = lodashStable.map([[1, 2], [3, 4]], _.chunk);
assert.deepEqual(actual, [[[1], [2]], [[3], [4]]]);
});
}());
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