9.03 Methods of list (লিস্টের মেথড সমূহ)

var list = ['Red', 'Green', 'Blue'];

list.add('Yellow');
list.addAll(['Black', 'White']);
print(list); // Output: [Red, Green, Blue, Yellow, Black, White]

list.insert(3, 'Purple');
print(list); // Output: [Red, Green, Blue, Purple, Yellow, Black, White]

list.insertAll(5, ['Pink', 'Gray']);
print(list); // Output: [Red, Green, Blue, Purple, Yellow, Pink, Gray, Black, White]
 

var list = ['Flutter', 'Dart', 'Java'];
print(list.contains('Dart')); // Output: true
 

var list = ['One', 'Two', 'Three', 'Four', 'Five', 'Six', 'Seven', 'Eight'];

list.remove('Six');
print(list); // Output: [One, Two, Three, Four, Five, Seven, Eight]

list.removeAt(0);
print(list); // Output: [Two, Three, Four, Five, Seven, Eight]

list.removeLast();
print(list); // Output: [Two, Three, Four, Five, Seven]

list.removeRange(1, 3); // এখানে ১ নাম্বার ইনডেক্স থেকে ৩ নাম্বার ইনডেক্স এর আগ পর্যন্ত মুছে ফেলা হবে।
print(list); // Output: [Two, Five, Seven]

list.removeWhere(((element) =\> element.contains('eve')));
print(list); // Output: [Two, Five]

list.clear();
print(list); // Output: []
 

var list = ['One', 'Two', 'Three', 'Four', 'Five', 'Six', 'Seven', 'Eight'];

print(list.sublist(4, 6)); // Output: [Five, Six]
print(list.getRange(4, 6)); // Output: (Five, Six)
print(list.take(3)); // Output: (One, Two, Three)
print(list.where(((element) =\> element.length == 3))); // Output: (One, Two, Six)
 

var list = ['One', 'Two', 'Three', 'Four', 'Five', 'Five', 'Six'];
print(list.indexOf('Five')); // Output: 4
print(list.lastIndexOf('Five')); // Output: 5
print(list.indexWhere(((element) =\> element.contains('ee')))); // Output: 2
 

var list = ['One', 'Two', 'Three'];
list.forEach((element) {
    print('This is element $element');
});

// Output:
// This is element One
// This is element Two
// This is element Three
 

var list = ['Rice', 'Lentis', 'Egg', 'Oil'];
print(list.join(', ')); // Output: Rice, Lentis, Egg, Oil
 

var list = ['Z', 'BB', 'AAA', 'AB'];

list.sort();
print(list); // Output: [AAA, AB, BB, Z]

list.sort(((a, b) =\> a.length.compareTo(b.length)));
print(list); // Output: [Z, AB, BB, AAA]
 

var list = ['One', 'Two', 'Three'];
list.shuffle();

print(list); // Output: [Two, Three, One]
 

var list = [1.3, 4.7, 7.8, 5.2];
list = list.map((e) =\> e.roundToDouble()).toList();
print(list); // Output: [1.0, 5.0, 8.0, 5.0]
 

var list = [1, 2, 3, 2, 4, 1];
print(list.toSet()); // Output: {1, 2, 3, 4}