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Adding a truncate method to a String in Groovy

/ Published in: Groovy
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this truncates a string to a provided length and adds "..." to the end to show that it was truncated.

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  1. // this adds a "truncate(#)" method to String and GString
  2. String.metaClass.truncate = {len ->
  3.     if (delegate == null) {return ''}
  4.     if (delegate.length() > len) {return delegate[0..(len - 4)] + '...'}
  5.     return delegate
  6. }

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