Is there a method in Dart like the String.join() method in Java & c#?
input:
nums: ["20", "3005", "2"]
output:
nums = "2030052"
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4 Answers
join is a method of the List class, rather than String:
List<String> yourList = ["20", "3005", "2"];
// To test that the above the above
yourList.join() == '2030052'; // true
yourList.join(',') == '20,3005,2'; // true, with "," delimiter
3 Comments
zerkms
yourList.join()?
Mohamed Dernoun
@zerkms yes this do the job and return a String
zerkms
@MohamedDernoun it was a comment to point out to the typo Mike made which they fixed.
This might not be the best solution, but you can reduce a collection to a single value by iteratively combining elements of the collection using the reduce method in Dart Lists.
String nums = numsList.reduce((value, element) => value + ',' + element);
You have to remember that, the iterable must have at least one element. If it has only one element, that element is returned.
Comments
In my case I had to convert into flat string. So this is the way I found;
List<String> tags = ["#heyy", "@newday", "#newpp"]; print(tags.join(' ')); // "#heyy @newday #newpp"
Comments
List<String> onlyString=[];
onlyString.add("Flutter");
for(int i=0; i < onlyString.length; i++){
print(onlyString[i].toString());}
1 Comment
Al Foиce ѫ
While this code may answer the question, providing additional context regarding why and/or how this code answers the question improves its long-term value.