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reverting some changes to isEqual that were a little too aggressive

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This commit is contained in:
Michael Ficarra
2011-09-04 19:34:19 -04:00
parent c7c57ca6ff
commit bf3aa97c36
2 changed files with 12 additions and 9 deletions
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4
test/objects.js
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@@ -72,8 +72,8 @@ $(document).ready(function() {
var moe = {name : 'moe', lucky : [13, 27, 34]};
var clone = {name : 'moe', lucky : [13, 27, 34]};
var isEqualObj = {isEqual: function (o) { return o.isEqual == this.isEqual; }, unique: {}};
var isEqualObjClone = {isEqual: isEqualObj.isEqual, unique: {}};
var isEqualObj = {isEqual: function (o) { return o.isEqual == this.isEqual; }, unique: {}};
var isEqualObjClone = {isEqual: isEqualObj.isEqual, unique: {}};
ok(moe != clone, 'basic equality between objects is false');
ok(_.isEqual(moe, clone), 'deep equality is true');
ok(_(moe).isEqual(clone), 'OO-style deep equality works');

17
underscore.js
View File

@@ -610,14 +610,16 @@
// `NaN` values are equal.
if (_.isNaN(a)) return _.isNaN(b);
// Compare dates by their millisecond values.
if (_.isDate(a)) return _.isDate(b) && a.getTime() == b.getTime();
var isDateA = _.isDate(a), isDateB = _.isDate(b);
if (isDateA || isDateB) return isDateA && isDateB && a.getTime() == b.getTime();
// Compare RegExps by their source patterns and flags.
if (_.isRegExp(a))
return _.isRegExp(b) &&
a.source == b.source &&
a.global == b.global &&
a.multiline == b.multiline &&
a.ignoreCase == b.ignoreCase;
var isRegExpA = _.isRegExp(a), isRegExpB = _.isRegExp(b);
if (isRegExpA || isRegExpB)
return isRegExpA && isRegExpB &&
a.source == b.source &&
a.global == b.global &&
a.multiline == b.multiline &&
a.ignoreCase == b.ignoreCase;
// Ensure that both values are objects.
if (typeA != 'object') return false;
// Unwrap any wrapped objects.
@@ -625,6 +627,7 @@
if (b._chain) b = b._wrapped;
// Invoke a custom `isEqual` method if one is provided.
if (typeof a.isEqual == 'function') return a.isEqual(b);
if (typeof b.isEqual == 'function') return b.isEqual(a);
// Compare array lengths to determine if a deep comparison is necessary.
if ('length' in a && (a.length !== b.length)) return false;
// Assume equality for cyclic structures.