javascript slice array
// 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' ]array.slice
const animals = ['ant', 'bison', 'camel', 'duck', 'elephant'];
console.log(animals.slice(2));
// expected output: Array ["camel", "duck", "elephant"]
console.log(animals.slice(2, 4));
// expected output: Array ["camel", "duck"]
console.log(animals.slice(1, 5));
// expected output: Array ["bison", "camel", "duck", "elephant"]array index javascript show only first 2 elements
array.slice(0, n);slice array javascript
/* The slice() method extracts a section of a string and returns
it as a new string, without modifying the original string. */
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"array slicing
/*
Arrays Methods [Slicing]
- slice(Start [Opt], End [Opt] Not Including End)
--- slice() => All Array
--- If Start Is Undefined => 0
--- Negative Count From End
--- If End Is Undefined || > Indexes => Slice To The End Array.length
--- Return New Array
- splice(Start [Mand], DeleteCount [Opt] [0 No Remove], The Items To Add [Opt])
--- If Negative => Start From The End
*/
let myFriends = ["Ahmed", "Sayed", "Ali", "Osama", "Gamal", "Ameer"];
console.log(myFriends);
console.log(myFriends.slice());
console.log(myFriends.slice(1));
console.log(myFriends.slice(1, 3));
console.log(myFriends.slice(-3));
console.log(myFriends.slice(1, -2));
console.log(myFriends.slice(-4, -2));
console.log(myFriends);
myFriends.splice(1, 2, "Sameer", "Samara");
console.log(myFriends);Copyright © 2021 Codeinu
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