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merging in #324 as _.initial

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This commit is contained in:
Jeremy Ashkenas
2011-10-05 15:32:34 -04:00
parent dcda142655
commit ac191a28a5
2 changed files with 8 additions and 8 deletions
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14
test/arrays.js
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@@ -24,13 +24,13 @@ $(document).ready(function() {
equals(_.flatten(result).join(','), '2,3,2,3', 'works well with _.map');
});
test("arrays: init", function() {
equals(_.init([1,2,3,4,5]).join(", "), "1, 2, 3, 4", 'working init()');
equals(_.init([1,2,3,4],2).join(", "), "1, 2", 'init can take an index');
var result = (function(){ return _(arguments).init(); })(1, 2, 3, 4);
equals(result.join(", "), "1, 2, 3", 'init works on arguments object');
result = _.map([[1,2,3],[1,2,3]], _.init);
equals(_.flatten(result).join(','), '1,2,1,2', 'init works with _.map');
test("arrays: initial", function() {
equals(_.initial([1,2,3,4,5]).join(", "), "1, 2, 3, 4", 'working initial()');
equals(_.initial([1,2,3,4],2).join(", "), "1, 2", 'initial can take an index');
var result = (function(){ return _(arguments).initial(); })(1, 2, 3, 4);
equals(result.join(", "), "1, 2, 3", 'initial works on arguments object');
result = _.map([[1,2,3],[1,2,3]], _.initial);
equals(_.flatten(result).join(','), '1,2,1,2', 'initial works with _.map');
});
test("arrays: last", function() {

2
underscore.js
View File

@@ -327,7 +327,7 @@
// the arguments object. Passing **n** will return all the values in
// the array, excluding the last N. The **guard** check allows it to work with
// `_.map`.
_.init = function(array, n, guard) {
_.initial = function(array, n, guard) {
return slice.call(array, 0, array.length - ((n == null) || guard ? 1 : n));
};