javascript array
//create an array like so:
var colors = ["red","blue","green"];
//you can loop through an array like this:
for (var i = 0; i < colors.length; i++) {
console.log(colors[i]);
}javascript array
//create an array like so:
var colors = ["red","blue","green"];
//you can loop through an array like this:
for (var i = 0; i < colors.length; i++) {
console.log(colors[i]);
}return array javascript
function func() {
return [5, "string", {a: 7}];
}list javascript
//Their are no lists in javascript, they are called arays,wich are basically the same thing
var fruits = ['Apple', 'Banana'];
console.log(fruits.length);
// 2
var first = fruits[0];
// Apple
var last = fruits[fruits.length - 1];
// Banana
fruits.forEach(function(item, index, array) {
console.log(item, index);
});
// Apple 0
// Banana 1
var newLength = fruits.push('Orange');
// ["Apple", "Banana", "Orange"]
var last = fruits.pop(); // deletes orange
// ["Apple", "Banana"];
var first = fruits.shift(); // supprime Apple (au début)
// ["Banana"];
var newLength = fruits.unshift('Strawberry') // adds to the start
// ["Strawberry", "Banana"];
fruits.push('Mango');
// ["Strawberry", "Banana", "Mango"]
var pos = fruits.indexOf('Banana');
// 1
var removedItem = fruits.splice(pos, 1); // deletes on element at the position pos
//removes one element at the position pos
// ["Strawberry", "Mango"]
var vegetables = ['Cabbage', 'Turnip', 'Radish', 'Carrot'];
console.log(vegetables);
// ["Cabbage", "Turnip", "Radish", "Carrot"]
var pos = 1, n = 2;
var removedItems = vegetables.splice(pos, n);
// n defines the number of element to delete starting from pos
console.log(vegetables);
// ["Cabbage", "Carrot"]
console.log(removedItems);
// ["Turnip", "Radish"] (splice returns list of deleted objects)how to crate a list in java script
var list = [1 ,2 ,"apple",true];Copyright © 2021 Codeinu
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