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Accidently splitting an empty string on some specific character returns a list of size One
Why splitting of empty string on some specific character returns a list of size One? What does this list contain if it has size One?
Sample code:`string s='';
list<string> str = s.split(',');
if(str.isEmpty()){
system.debug('Hello i am empty');
}
else{
system.debug('oops');
} -
3 Replies
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The property of split() is such that the list you get back always has at least one element. You are splitting the empty string, and so you're getting back a list of size 1, where the element in the list is the empty string.
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Splitting an empty string returns the empty string as the first element. If no delimiter is found in the target string, you will get an array of size 1 that is holding the original string, even if it is empty
Example:
String str =",Utsav"
str.split(',') will return a list of size 2If you split an orange zero times, you have exactly one piece - the orange
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This reply was modified 8 years, 9 months ago by Ravi.
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This reply was modified 8 years, 9 months ago by
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Split always returns at least one element.
In the case that a separator is not found, the entire input (empty String) is returned as a single-element in the List. For that reason the List size will be always one.
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