JavaScript obtenga subcuenca
var fruits = ["Banana", "Orange", "Lemon", "Apple", "Mango"];
var citrus = fruits.slice(1, 3);
// ["Orange", "Lemon"]
Mattalui
var fruits = ["Banana", "Orange", "Lemon", "Apple", "Mango"];
var citrus = fruits.slice(1, 3);
// ["Orange", "Lemon"]// array.slice(start, end)
const FRUITS = ["Banana", "Orange", "Lemon", "Apple", "Mango"];
var citrus = FRUITS.slice(1, 3);
// citrus => [ 'Orange', 'Lemon' ]
// Negative values slice in the opposite direction
var fromTheEnd = FRUITS.slice(-3, -1);
// fromTheEnd => [ 'Lemon', 'Apple' ]const string="Hi my name is mezen";
string.slice (2); // return string without the character of index 2;
string.slice (6); // return string without the character of index 6;
string.slice (3,7) /* return 'my na' (m of index 3; a of index 7) including the
blank spaces */ arr.slice(1).map((_, i) => [arr.slice(0, i + 1), arr.slice(i + 1)]);//The slice() method extracts a section of a string and returns
//it as a new string, without modifying the original string.
// same in array but you select elements not characters
const str = 'The quick brown fox jumps over the lazy dog.';
console.log(str.slice(31));
// expected output: "the lazy dog."
console.log(str.slice(4, 19));
// expected output: "quick brown fox"
console.log(str.slice(-4));
// expected output: "dog."
console.log(str.slice(-9, -5));
// expected output: "lazy"
const strings = ["fred", "esther","sarah","favour","abraham","isaac","idemudia"]
const capitalStrings = strings.map((name) => {
return name[0].toUpperCase() + name.slice(1)
})
console.log(capitalStrings)
// Expected result: [
// "Fred",
// "Esther",
// "Sarah",
// "Favour",
// "Abraham",
// "Isaac",
// "Idemudia"
// ]