In dart, split string into two parts using length of first string - dart

Question

I have a string hiWorld and
i want to split this string in two parts hi and World by length of first word hi which is of length 2.
This is what i want to do
List<String> list = ("hiWorld").splitFromLength(2);

Answer 1

I'd use the solution you published shortening up the definition:
List<String> splitStringByLength(String str, int length) =>
[str.substring(0, length), str.substring(length)];
or using an extension method to call the function:
extension on String {
List<String> splitByLength(int length) =>
[substring(0, length), substring(length)];
}
'helloWorld'.splitByLength(5); // Returns [hello, World].

Answer 2

My current solution
List<String> splitStringByLength( String str, int length)
{
List<String> data = [];
data.add( str.substring(0, length) );
data.add( str.substring( length) );
return data;
}

Answer 3

This is my solution which is more generic:
List<String> splitByLength(String value, int length) {
List<String> pieces = [];
for (int i = 0; i < value.length; i += length) {
int offset = i + length;
pieces.add(value.substring(i, offset >= value.length ? value.length : offset));
}
return pieces;
}
And the extension method:
extension on String {
List<String> splitByLength(int length, {bool ignoreEmpty = false}) {
List<String> pieces = [];
for (int i = 0; i < this.length; i += length) {
int offset = i + length;
String piece = this.substring(i, offset >= this.length ? this.length : offset);
if (ignoreEmpty) {
piece = piece.replaceAll(RegExp(r'\s+'), '');
}
pieces.add(piece);
}
return pieces;
}
}
You can use it like:
'HELLO WORLD'.splitByLength(5, ignoreEmpty: true)