安裝中文字典英文字典辭典工具!
安裝中文字典英文字典辭典工具!
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- What is the difference between ==~ and != in Groovy?
In Groovy you also have to be aware that in addition to ==~, alias "Match operator", there is also =~, alias "Find Operator" and ~, alias "Pattern operator" All are explained here ==~ result type: Boolean boolean (there are no primitives in Groovy, all is not what it seems!) =~ result type: java util regex Matcher ~ result type: java util
- What is the ?: operator used for in Groovy? - Stack Overflow
The following code examples all produce the same results where x evaluates to true according to Groovy Truth These three code snippets mean the same thing If x is true according to groovy truth return x else return y x ?: y x ? x : y Standard ternary operator
- variables - What does [:] mean in groovy? - Stack Overflow
Technically, "is the only Map with size() returning 0" is untrue There are lots of possible map instances with size 0, and they definitely don't all have reference equality
- What is the groovy lt; lt; operator mean in this context?
In groovy, the bitwise operators can be overridden with the leftShift (<<) and rightShift (>>) methods defined on the class It's idiomatic groovy to use the leftShift method for append actions on strings, buffers, streams, arrays, etc and thats what you're seeing here
- Groovy: whats the purpose of def in def x = 0?
In unimportant scripts console input (like the groovy console) it's somewhat acceptable because the script's scope is limited I think the only reason groovy allows you to do this in scripts is to support DSLs the way Ruby does (A bad trade-off if you ask me, but some people love the DSLs)
- Groovy == operator - Stack Overflow
== in Groovy is roughly equivalent to equals(), however, you'll find it's different from Java when comparing different classes with the same value - if the class is Comparable Groovy also does type casting if possible If you check out the code, it looks like ultimately compareToWithEqualityCheck() is executed for ==
- Newest groovy Questions - Stack Overflow
The Eclipse Groovy editor save actions section contains only 1 checkbox: "Remove unnecessary semicolons
- How do I create and access the global variables in Groovy?
In a Groovy script the scoping can be different than expected That is because a Groovy script in itself is a class with a method that will run the code, but that is all done runtime We can define a variable to be scoped to the script by either omitting the type definition or in Groovy 1 8 we can add the @Field annotation
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