equality

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Ruby classes seem to be the same but not considered equal

How can two objects seem to be identical but are not? Have pickle_step that runs code \"model!(owner).send(association).should == model!(target)\"[详细]

2023-03-20 14:08 分类：问答
Is == a special method in Ruby?

I understand that x == y in Ruby interpreted as a.==(y). I tried to check if 开发者_如何学CI can achieve the same with custom method, foo, like this:[详细]

2023-03-19 05:28 分类：问答
Javascript equality weirdness

I\'m trying to fetch some data through ajax. One of the data determines whether or not a checkbox should be checked by default. If the ret开发者_高级运维urned variable isVisible is 1, then it should b[详细]

2023-03-16 17:58 分类：问答
Difference between String#equals and String#contentEquals methods

What is the difference between the String#equals method and the Str开发者_StackOverflowing#contentEquals method?The String#equals() not only compares the String\'s contents, but also checks if the oth[详细]

2023-03-15 03:34 分类：问答
Having null safe checks using org.apache.commons.ObjectUtil class for custom objects

Ive been searching for a robust way to compare my objects, I came across the ObjectUtils , and had the immidiate doubt that would it be able to com开发者_开发技巧pare it efficiently or not as I do not[详细]

2023-03-14 23:08 分类：问答
How to test equality of quoted symbols in Scheme?

In this example, > (= 1 1) #t > (= \'a \'a) *** ERROR IN (console)@2.1 -- (Argument 1) NUMBER expected[详细]

2023-03-12 05:39 分类：问答
How does the C == operator decide whether or not two floating point values are equal?

Today I was tracking down why my program was getting some unexpected checksum-mismatch errors, in some code that I wrote that serializes and deserializes IEEE-754 floating-point values, in a format th[详细]

2023-03-10 16:48 分类：问答
Implementation of Dictionary where equivalent contents are equal and return the same hash code regardless of order of insertion

I need to use Dictionary<long, string> collections that given two instances d1 and d2 where they each have the same KeyValuePair<long, string> contents, which could be inserted in any orde[详细]

2023-03-08 21:36 分类：问答
Testing equivalence of mathematical expressions in Python

I have got two strings in Python, A m * B s / (A m + C m) and C m * B s / (C m + A m) that are both equivalent functions of the unordered set (A, C) and the unordered开发者_JAVA技巧 set (B). m a[详细]

2023-03-08 16:57 分类：问答
jsMockito method invocation assertion not working as expected

I\'m having trouble making some method invocation assertions when testing a Javascript Object with QUnit + JsMockito. The basic infrastructure is working ok: Qunit, JsHamcrest(Jsmockito dependency) an[详细]

2023-03-08 06:34 分类：问答