List (Array) in Dart

Arrays in Dart compared to other programming languages like PHP or Node.js have some differences in terminology, usage, and features. Let's discuss these differences in detail:

Terminology

Dart: Dart does not use the term "array". Instead, Dart uses the term "List". A List in Dart is an indexed and mutable collection.
PHP: PHP uses the term "array" for a data structure that can store elements of different types. PHP arrays can act as indexed arrays, associative arrays, or multidimensional arrays.
Node.js (JavaScript): JavaScript, which is used in Node.js, uses the term "array". An array in JavaScript is a dynamic-length object that can store elements of different types.

Declaration and Initialization

Dart

void main() {
  List<int> numbers = [1, 2, 3, 4, 5];
  print(numbers); // Output: [1, 2, 3, 4, 5]
}

PHP

<?php
$numbers = array(1, 2, 3, 4, 5);
print_r($numbers); // Output: Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 [4] => 5 )
?>

JavaScript (Node.js)

let numbers = [1, 2, 3, 4, 5];
console.log(numbers); // Output: [1, 2, 3, 4, 5]

Adding Elements

Dart

void main() {
  List<int> numbers = [1, 2, 3];
  numbers.add(4);
  print(numbers); // Output: [1, 2, 3, 4]
}

PHP

<?php
$numbers = array(1, 2, 3);
$numbers[] = 4;
print_r($numbers); // Output: Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 )
?>

JavaScript (Node.js)

let numbers = [1, 2, 3];
numbers.push(4);
console.log(numbers); // Output: [1, 2, 3, 4]

Removing Elements

Dart

void main() {
  List<int> numbers = [1, 2, 3, 4];
  numbers.removeAt(2);
  print(numbers); // Output: [1, 2, 4]
}

PHP

<?php
$numbers = array(1, 2, 3, 4);
unset($numbers[2]);
$numbers = array_values($numbers); // Reindex array
print_r($numbers); // Output: Array ( [0] => 1 [1] => 2 [2] => 4 )
?>

JavaScript (Node.js)

let numbers = [1, 2, 3, 4];
numbers.splice(2, 1);
console.log(numbers); // Output: [1, 2, 4]

Special Features

Dart

Typed Lists: Dart allows you to declare Lists with a specific type, such as List<int> or List<String>, which provides type safety at compile time.
Built-in Methods: Dart provides many built-in methods like add, remove, insert, sort, map, reduce, and many more that make List manipulation easier.

PHP

Flexible Arrays: PHP arrays are highly flexible and can be used as indexed arrays, associative arrays, or multidimensional arrays.
Array Functions: PHP provides many built-in array functions such as array_push, array_pop, array_merge, array_diff, array_map, and others.

JavaScript (Node.js)

Dynamic Typing: JavaScript arrays are dynamic and can store elements of different types.
Array Methods: JavaScript provides many modern array methods such as push, pop, shift, unshift, map, filter, reduce, and more for advanced data manipulation.

Conclusion

Dart: Uses typed Lists, provides many built-in methods, and offers type safety at compile time.
PHP: Uses highly flexible arrays that support various types of arrays and comes with numerous built-in array functions.
JavaScript (Node.js): Uses dynamic arrays that can store elements of different types and offers many modern array methods for advanced data manipulation.

List (Array) in Dart

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Terminology

Declaration and Initialization

Dart

PHP

JavaScript (Node.js)

Adding Elements

Dart

PHP

JavaScript (Node.js)

Removing Elements

Dart

PHP

JavaScript (Node.js)

Special Features

Dart

PHP

JavaScript (Node.js)

Conclusion

Command Palette

Comments

More from this blog

Terminology

Declaration and Initialization

Dart

PHP

JavaScript (Node.js)

Adding Elements

Dart

PHP

JavaScript (Node.js)

Removing Elements

Dart

PHP

JavaScript (Node.js)

Special Features

Dart

PHP

JavaScript (Node.js)

Conclusion