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Make _.at an "Object" method.

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This commit is contained in:
John-David Dalton
2015-07-16 10:24:30 -07:00
parent b638f86b75
commit bbad03547d
2 changed files with 57 additions and 72 deletions
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43
test/test.js
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@@ -1027,6 +1027,12 @@
var args = arguments,
array = ['a', 'b', 'c'];
_.each(empties, function(value) {
if (value !== 0) {
array[value] = 1;
}
});
array['1.1'] = array['-1'] = 1;
test('should return the elements corresponding to the specified keys', 1, function() {
@@ -1039,12 +1045,12 @@
deepEqual(actual, ['c', undefined, 'a']);
});
test('should use `undefined` for non-index keys on array-like values', 1, function() {
test('should work with non-index keys on array-like values', 1, function() {
var values = _.reject(empties, function(value) {
return value === 0 || _.isArray(value);
}).concat(-1, 1.1);
var expected = _.map(values, _.constant(undefined)),
var expected = _.map(values, _.constant(1)),
actual = _.at(array, values);
deepEqual(actual, expected);
@@ -1060,19 +1066,19 @@
deepEqual(actual, ['d', 'a', 'c']);
});
test('should work with a falsey `collection` argument when keys are provided', 1, function() {
test('should work with a falsey `object` argument when keys are provided', 1, function() {
var expected = _.map(falsey, _.constant(Array(4)));
var actual = _.map(falsey, function(collection) {
var actual = _.map(falsey, function(object) {
try {
return _.at(collection, 0, 1, 'pop', 'push');
return _.at(object, 0, 1, 'pop', 'push');
} catch(e) {}
});
deepEqual(actual, expected);
});
test('should work with an `arguments` object for `collection`', 1, function() {
test('should work with an `arguments` object for `object`', 1, function() {
var actual = _.at(args, [2, 0]);
deepEqual(actual, [3, 1]);
});
@@ -1082,7 +1088,7 @@
deepEqual(actual, [2, 3, 4]);
});
test('should work with an object for `collection`', 1, function() {
test('should work with an object for `object`', 1, function() {
var actual = _.at({ 'a': 1, 'b': 2, 'c': 3 }, ['c', 'a']);
deepEqual(actual, [3, 1]);
});
@@ -1099,9 +1105,9 @@
'literal': 'abc',
'object': Object('abc')
},
function(collection, key) {
test('should work with a string ' + key + ' for `collection`', 1, function() {
deepEqual(_.at(collection, [2, 0]), ['c', 'a']);
function(object, key) {
test('should work with a string ' + key + ' for `object`', 1, function() {
deepEqual(_.at(object, [2, 0]), ['c', 'a']);
});
});
}(1, 2, 3));
@@ -12342,23 +12348,6 @@
deepEqual(actual, ['c', undefined, 'a']);
});
test('should ignore non-index keys', 2, function() {
var array = ['a', 'b', 'c'],
clone = array.slice();
array['1.1'] = array['-1'] = 1;
var values = _.reject(empties, function(value) {
return value === 0 || _.isArray(value);
}).concat(-1, 1.1, 'pop', 'push');
var expected = _.map(values, _.constant(undefined)),
actual = _.pullAt(array, values);
deepEqual(actual, expected);
deepEqual(array, clone);
});
test('should return an empty array when no indexes are provided', 4, function() {
var array = ['a', 'b', 'c'],
actual = _.pullAt(array);