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Merge branch 'underscore.any' of https://github.com/shinuza/underscore

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This commit is contained in:
Jeremy Ashkenas
2011-07-13 12:40:08 -04:00
parent 7573ac7751 40af1652eb
commit 779a28d59a
2 changed files with 8 additions and 5 deletions
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3
test/collections.js
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@@ -137,12 +137,15 @@ $(document).ready(function() {
}); });
test('collections: any', function() { test('collections: any', function() {
var nativeSome = Array.prototype.some;
Array.prototype.some = null;
ok(!_.any([]), 'the empty set'); ok(!_.any([]), 'the empty set');
ok(!_.any([false, false, false]), 'all false values'); ok(!_.any([false, false, false]), 'all false values');
ok(_.any([false, false, true]), 'one true value'); ok(_.any([false, false, true]), 'one true value');
ok(!_.any([1, 11, 29], function(num){ return num % 2 == 0; }), 'all odd numbers'); ok(!_.any([1, 11, 29], function(num){ return num % 2 == 0; }), 'all odd numbers');
ok(_.any([1, 10, 29], function(num){ return num % 2 == 0; }), 'an even number'); ok(_.any([1, 10, 29], function(num){ return num % 2 == 0; }), 'an even number');
ok(_.some([false, false, true]), 'aliased as "some"'); ok(_.some([false, false, true]), 'aliased as "some"');
Array.prototype.some = nativeSome;
}); });
test('collections: include', function() { test('collections: include', function() {

10
underscore.js
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@@ -181,15 +181,15 @@
// Determine if at least one element in the object matches a truth test. // Determine if at least one element in the object matches a truth test.
// Delegates to **ECMAScript 5**'s native `some` if available. // Delegates to **ECMAScript 5**'s native `some` if available.
// Aliased as `any`. // Aliased as `any`.
var any = _.some = _.any = function(obj, iterator, context) { var any = _.some = _.any = function (obj, iterator, context) {
iterator || (iterator = _.identity); iterator = iterator || _.identity;
var result = false; var result = false;
if (obj == null) return result; if (obj == null) return result;
if (nativeSome && obj.some === nativeSome) return obj.some(iterator, context); if (nativeSome && obj.some === nativeSome) return obj.some(iterator, context);
each(obj, function(value, index, list) { each(obj, function (value, index, list) {
if (result = iterator.call(context, value, index, list)) return breaker; if (result |= iterator.call(context, value, index, list)) return breaker;
}); });
return result; return !!result;
}; };
// Determine if a given value is included in the array or object using `===`. // Determine if a given value is included in the array or object using `===`.