equals-operator

问题 This question already has answers here : Double structural equality operators: if(a==b==c) (2 answers) Closed 6 years ago . I've got 3 random numbers (in this specific case between 1 and 7 but it doesn't really matter). I want to check whether I got "three of a kind" by using if (x==y==z) { code } The problem is that when x==y and z==1 x==y==z will return true. How do I check whether x, y and z actually got the SAME value? Example: 5==5==1 will return true, how do I check for 5==5==5

问题 This question already has answers here : Double structural equality operators: if(a==b==c) (2 answers) Closed 6 years ago . I've got 3 random numbers (in this specific case between 1 and 7 but it doesn't really matter). I want to check whether I got "three of a kind" by using if (x==y==z) { code } The problem is that when x==y and z==1 x==y==z will return true. How do I check whether x, y and z actually got the SAME value? Example: 5==5==1 will return true, how do I check for 5==5==5

问题 When searching for explanations of how logical equals == works in Java the answers are always something along the lines of: For primitives it returns whether the primitives have the same value (this includes comparing a primitive to its WrapperObject as the WrapperObject gets automatically unboxed to a primitive). For Objects it returns whether they represent the same Object on the Heap. But these explanations all seem to imply that these are 2 different things , that == behaves differently

问题 Due to my current understanding of Python's syntax, I have run into an issue where I need to set a variable to a value but without using any operators. I have to use functions. Consider this senario class Senario: x: str = '' y: str = '' set_global_variable(self, set_variable, val: str) # some verification code and modifications set_variable(val) set_x(self, val: str) self.set_global_variable(setX, val) set_x(self, val: str) self.set_global_variable(lambda new_x: self.x = new_x, val) The

问题 Due to my current understanding of Python's syntax, I have run into an issue where I need to set a variable to a value but without using any operators. I have to use functions. Consider this senario class Senario: x: str = '' y: str = '' set_global_variable(self, set_variable, val: str) # some verification code and modifications set_variable(val) set_x(self, val: str) self.set_global_variable(setX, val) set_x(self, val: str) self.set_global_variable(lambda new_x: self.x = new_x, val) The

问题 This question already has answers here : Closed 9 years ago . Possible Duplicate: Javascript === vs == : Does it matter which “equal” operator I use? When would JavaScript == make more sense than ===? What is the difference between below methods in comparing a string with undefined value. var x; if(x==undefined) { alert(x); } and if(x===undefined) { alert(x); } Why should i prefer second method in this case.. Please let me know advantages.. 回答1: == attempts to convert the values to the same

问题 This question already has answers here : Closed 9 years ago . Possible Duplicate: Javascript === vs == : Does it matter which “equal” operator I use? When would JavaScript == make more sense than ===? What is the difference between below methods in comparing a string with undefined value. var x; if(x==undefined) { alert(x); } and if(x===undefined) { alert(x); } Why should i prefer second method in this case.. Please let me know advantages.. 回答1: == attempts to convert the values to the same

问题 This question already has answers here : Closed 9 years ago . Possible Duplicate: Javascript === vs == : Does it matter which “equal” operator I use? When would JavaScript == make more sense than ===? What is the difference between below methods in comparing a string with undefined value. var x; if(x==undefined) { alert(x); } and if(x===undefined) { alert(x); } Why should i prefer second method in this case.. Please let me know advantages.. 回答1: == attempts to convert the values to the same

问题 I am working on a project and for a part of it I need to compare 2 strings. My issue comes that whenever I try to compare them I always get false (==, .Equals(), String.Equals() - they all return false, even though I have 2 completely identical strings) Here is a part of my code. var tagType = JObject.Parse(json).First.First.ToString(); foreach (var type in assembly.ExportedTypes) { var name = tagType; var currentType = type.Name; var a = name.Length; var b = currentType.Length; var result =

问题 I was under the impression that = is an assignment, == is a numeric comparison, and === is a symbolic comparison (as well as in some other languages == being equal to and === being identical to . However, looking at the following it would appear that this is not necessarily the case... In: x == x Out: True In: x === x Out: True In: 5 == 5 Out: True In: 5 === 5 Out: True In: x = 5 Out: 5 In: 5 == x Out: True In: 5 === x Out: True In: 5 5 == 5x Out: True In: 5 5 === 5x Out: True In: x == y Out: