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How to use the in keyword in Dart
Maria ElijahOverview
In Dart, the in keyword is used in the for-in loop. When we iterate through an iterable, such as a list or a set, the for-in loop comes in handy.
Syntax
for (variablename in iterable){
// some code to execute
}
Code
The following code shows how to use the in keyword in Dart.
void main() {
// create list
var lang = ['D','a','r','t'];
// iterate through the list
// using for-in loop
for (var x in lang) {
print(lang);
}
}Using in keyword
Explanation
- Lines 1–9: We create the
main()function. - Line 3: In
main(), we declare a list calledlang. - Lines 6–8: We use the
for-inloop to iterate through the listlangand display the items in the list.
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