aris
1
Hi ,
I ran the below code to do some test on <=>,==,===,eql?,equal? I took 1
and 1.o to perform my test.
Part-I : output is saying 1 and 1.0 are equal - as per mathematical
knowledge it is right.
irb(main):009:0> 1<=>1.01
=> -1
irb(main):010:0> 1<=>1.0
=> 0
irb(main):011:0> 1==1.0
=> true
irb(main):012:0> 1===1.0
=> true
Part- II
Here why the opposite output comes here, how it comes? what computation
Ruby did on these?
irb(main):015:0> 1.eql? 1.0
=> false
irb(main):016:0> 1.equal? 1.0
=> false
irb(main):017:0>
my-ruby
2
Someone’s done a handy description of some common comparison operators
here:
my-ruby
3
Hi Arup,
“eql?” returns true if num and numeric are the same type and have equal
values.
1 is Integer, 1.0 is Float
1 == 1.0 #=> true
1.eql?(1.0) #=> false
(1.0).eql?(1.0) #=> true
please refer to the documentation before asking.
regards
attila
my-ruby
4
Joel P. wrote in post #1092080:
Someone’s done a handy description of some common comparison operators
here:
Thanks for the link,most of the part going above the head!
trying to
map it with my one,but my bad.I was failed.
my-ruby
5
On Jan 12, 2013, at 3:29 PM, Arup R. wrote:
I think you need to start here;
http://pine.fm/LearnToProgram/