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Contents
// ==========================================================================
// Project: SproutCore Costello - Property Observing Library
// Copyright: ©2006-2011 Strobe Inc. and contributors.
// Portions ©2008-2010 Apple Inc. All rights reserved.
// License: Licensed under MIT license (see license.js)
// ==========================================================================
/**
@namespace
Implements some standard methods for comparing objects. Add this mixin to
any class you create that can compare its instances.
You should implement the compare() method.
@since SproutCore 1.0
*/
SC.Comparable = {
/**
walk like a duck. Indicates that the object can be compared.
@type Boolean
*/
isComparable: YES,
/**
Override to return the result of the comparison of the two parameters. The
compare method should return
-1 if a < b
0 if a == b
1 if a > b
Default implementation raises
an exception.
@param a {Object} the first object to compare
@param b {Object} the second object to compare
@returns {Integer} the result of the comparison
*/
compare: function(a, b) {
throw "%@.compare() is not implemented".fmt(this.toString());
}
};
Version data entries
5 entries across 5 versions & 2 rubygems