Recent questions tagged Variable

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variable assignment - Why is `a = a` `nil` in Ruby?

I watched this video. Why is a = a evaluated to nil if a is not defined? a = a # => nil b = c = q = c # => nil Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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variable assignment - Operator precedence with Javascript Ternary operator

I cant seem to wrap my head around the first part of this code ( += ) in combination with the ternary ... question is how should i interpet this code correctly? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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variable assignment - Copy constructor and = operator overload in C++: is a common function possible?

Since a copy constructor MyClass(const MyClass&); and an = operator overload MyClass& operator = (const MyClass&); ... a common function for them both to use? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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variable assignment - What does the keyword Set actually do in VBA?

This question already has answers here: Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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variable declaration - When to use extern in C++

I'm reading "Think in C++" and it just introduced the extern declaration. For example: extern int x; ... it proves useful. Can someone provide an example? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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variable declaration - When to use extern in C++

I'm reading "Think in C++" and it just introduced the extern declaration. For example: extern int ... .com/questions/65858065/optimal-implementation-of-cross-file-global-variables...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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variable assignment - Create structures in loop and assign to another structure in IDL

In IDL I would like to create a structure in a loop with different data and then to assign them all to the ... /create-structures-in-loop-and-assign-to-another-structure-in-idl...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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993 views

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variable assignment - Why is `a = a` `nil` in Ruby?

I watched this video. Why is a = a evaluated to nil if a is not defined? a = a # => nil b = c = ... from:https://stackoverflow.com/questions/8908050/why-is-a-a-nil-in-ruby...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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variable assignment - Why is `a = a` `nil` in Ruby?

I watched this video. Why is a = a evaluated to nil if a is not defined? a = a # => nil b = c = ... from:https://stackoverflow.com/questions/8908050/why-is-a-a-nil-in-ruby...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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2.6k views

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variable value from variable name in VBA

I have code that works that is With ClientForm If retainerFee <> .RetainerFeeTB.Value Then LabelLB.AddItem (.RetainerFeeLabel. ... just don't know how to get the Variable Value...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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variable declaration - When to use extern in C++

I'm reading "Think in C++" and it just introduced the extern declaration. For example: extern int x; extern ... I wonder when it proves useful. Can someone provide an example?...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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