diff options
Diffstat (limited to 'groovy.html.markdown')
| -rw-r--r-- | groovy.html.markdown | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/groovy.html.markdown b/groovy.html.markdown index 519f36ce..492c1ba2 100644 --- a/groovy.html.markdown +++ b/groovy.html.markdown @@ -99,7 +99,7 @@ technologies.sort() // To sort without mutating original, you can do: sortedTechnologies = technologies.sort( false ) -/*** Manipulating Lists ***/ +/*** Manipulating Lists ***/e //Replace all elements in the list Collections.replaceAll(technologies, 'Gradle', 'gradle') @@ -200,6 +200,14 @@ def y = 10 def x = (y > 1) ? "worked" : "failed" assert x == "worked" +//Groovy supports 'The Elvis Operator' too! +//Instead of using the ternary operator: + +displayName = user.name ? user.name : 'Anonymous' + +//We can write it: +displayName = user.name ?: 'Anonymous' + //For loop //Iterate over a range def x = 0 @@ -422,6 +430,3 @@ Join a [Groovy user group](http://www.groovy-lang.org/usergroups.html) [1] http://roshandawrani.wordpress.com/2010/10/18/groovy-new-feature-closures-can-now-memorize-their-results/ [2] http://www.solutionsiq.com/resources/agileiq-blog/bid/72880/Programming-with-Groovy-Trampoline-and-Memoize [3] http://mrhaki.blogspot.mx/2011/05/groovy-goodness-cache-closure-results.html - - - |