.getRange()

Published Feb 29, 2024
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In Dart, the .getRange() method is used to get a specific section of elements from a list. It is useful for picking out a series of elements by their positions without changing the original list. It gives back an Iterable that covers from the starting index to, but not including, the ending index. This makes it perfect for tasks where you need just a part of the list’s elements.

Syntax

list.getRange(start, end)
  • start: An integer representing the starting index of the range to be retrieved.
  • end: An integer indicating the end index of the range (exclusive).

Example

In the following example, the .getRange() method is used to obtain elements at index 1 through 3 from the fruits list. Note that the result is an iterable, which represents the specified range of elements.

void main() {
List<String> fruits = ['Apple', 'Banana', 'Cherry', 'Date'];
print('Original List: $fruits');
// Getting range of 'Banana', 'Cherry', 'Date'
Iterable<String> fruitRange = fruits.getRange(1, 4);
print('Fruits in the range: $fruitRange');
}

Here is the output for the above example:

Original List: [Apple, Banana, Cherry, Date]
Fruits in the range: (Banana, Cherry, Date)

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