VietMX Staff asked 4 years ago
Problem
=====eql?equal?
==– Checks if the value of two operands are equal (often overridden to provide a class-specific definition of equality).===– Specifically used to test equality within thewhenclause of acasestatement (also often overridden to provide meaningful class-specific semantics in case statements).eql?– Checks if the value and type of two operands are the same (as opposed to the==operator which compares values but ignores types). For example,1 == 1.0evaluates totrue, whereas1.eql?(1.0)evaluates tofalse.equal?– Compares theidentityof two objects; i.e., returnstrueiff both operands have the same object id (i.e., if they both refer to the same object). Note that this will returnfalsewhen comparing two identical copies of the same object.
