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ZilaStar ICT Sep 22 2020, 15:42:46

includes (JavaScript Array Method)

const tnwNames = ["Hla Hla", "Mya Mya", "Soe Soe", "Moe Moe"];

function tnwFun1(){
    document.getElementById("demo").innerHTML = tnwNames.join("
");
}

function tnwFun2(){
    document.getElementById("demo").innerHTML = tnwNames.includes("Mya Mya");
}

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ZilaStar ICT Sep 05 2020, 09:58:52

from (JavaScript Array Method)

const myLetter = "ABCDEFGHIJKL";

function tnwFun1(){
    document.getElementById("demo").innerHTML = myLetter;
}

function tnwFun2(){
    const result = Array.from(myLetter);
    document.getElementById("demo").innerHTML = result;
}

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ZilaStar ICT Aug 26 2020, 09:58:18

forEach (JavaScript Array Method)

const student = ["Aung Aung", "Maung", "Kyaw", "Zaw", "Soe", "Moe"];
let names = "";
function tnwFun1(){
    student.forEach(tnwFun2);
}

function tnwFun2(item, index){
    names += index + " : " + item + "
";
    document.getElementById("demo").innerHTML = names;
}

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ZilaStar ICT Aug 11 2020, 09:57:48

findIndex (JavaScript Array Method)

const tnwAges = [19, 39, 28, 43, 29, 45, 53];

function tnwFun1(){
    document.getElementById("demo").innerHTML = tnwAges.join("
");
}

function tnwFun2(){
    document.getElementById("demo").innerHTML = tnwAges.findIndex(chkAge);
}

function chkAge(age){
    return age > document.getElementById("myAge").value;
}

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ZilaStar ICT Jul 27 2020, 09:57:10

find (JavaScript Array Method)

const tnwAges = [19, 39, 28, 43, 29, 45, 53];

function tnwFun1(){
    document.getElementById("demo").innerHTML = tnwAges.join("
");
}

function tnwFun2(){
    document.getElementById("demo").innerHTML = tnwAges.find(chkAge);
}

function chkAge(age){
    return age > document.getElementById("myAge").value;
}

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ZilaStar ICT Jul 11 2020, 09:56:23

filter (JavaScript Array Method)

const tnwAges = [25, 18, 29, 20, 40, 32, 53, 24];

function tnwFun1(){
    document.getElementById("demo").innerHTML = tnwAges.join("
");
}

function tnwFun2(){
    const result = tnwAges.filter(chkAge);
    document.getElementById("demo").innerHTML = result.join("
");
}

function chkAge(age){
    return age > 20;
}

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ZilaStar ICT Jun 22 2020, 09:55:54

fill (JavaScript Array Method)

const tnwNames = ["Aye Aye", "Nwe Nwe", "Hla Hla", "Mya Mya", "Soe Soe", "Moe Moe"];

function tnwFun1(){
    document.getElementById("demo").innerHTML = tnwNames.join("
");
}

function tnwFun2(){
    const result = tnwNames.fill("Aung Aung", 1, 3);
    document.getElementById("demo").innerHTML = result.join("
"); 
}

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ZilaStar ICT Jun 11 2020, 09:55:16

every (JavaScript Array Method)

const tnwAge = [20, 29, 48, 76, 50, 38, 39];

function tnwFun1(){
    document.getElementById("demo").innerHTML = tnwAge.every(tnwFun2);
}

function tnwFun2(chkAge){
    return chkAge > 19;
}

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ZilaStar ICT Apr 03 2020, 09:53:28

entries (JavaScript Array Method)

const tnwNames = ["Hla Hla", "Mya Mya", "Aye Aye", "Nwe Nwe", "Soe Soe", "Moe Moe", "Aung Aung"];
const y = tnwNames.entries();
for(x of y){
    document.write(x + "
");
}

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ZilaStar ICT Mar 11 2020, 09:51:51

copyWithin (JavaScript Array Method)

const people = ["Hla", "Mya", "Aung", "Maung", "Soe", "Noe", "Moe"];

function tnwFun1(){
    document.getElementById("demo").innerHTML = people.join("
");
}

function tnwFun2(){
    const result = people.copyWithin(3, 0, 3);
    document.getElementById("demo").innerHTML = result.join("
");
}

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ZilaStar ICT Mar 01 2020, 09:48:09

concat (JavaScript Array Methods)

const girls = ["Aye Aye", "Nwe Nwe", "Htwe Htwe"];
const boys = ["Aung Aung", "Maung Maung", "Kyaw Kyaw"];
const students = ["Hla Hla", "Mya Mya", "Aung Ba", "Aung Mya"];

const people = girls.concat(boys, students);
document.write(people.join("
"));

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ZilaStar ICT Feb 25 2020, 09:47:07

JavaScript Array Properties

length
	Sets or returns the number of elements in an array.

prototype 
	Allows you to add new properties and methods to an Array object.


//length
/*
const countries = ["USA", "UK", "Canada", "Myanmar", "Singapore"];

function showLength(){
    document.getElementById("demo").innerHTML = countries.length;
}

//prototype

Array.prototype.tnwCase = function(){
    for(let i = 0; i < this.length; i++){
        this[i] = this[i].toLowerCase(); //lower case
    }
};

const countries = ["USA", "UK", "Canada", "Myanmar", "Singapore"];
countries.tnwCase();

function tnwFun(){
    document.getElementById("demo").innerHTML = countries;
}*/

//Another example of prototype property

function Person(first, middle, last){
    this.firstName = first;
    this.middleName = middle;
    this.lastName = last;
}

const myFriend = new Person("Aung", "Kyaw", "Soe");
Person.prototype.nationality = "Myanmar";
Person.prototype.age = 35;

function tnwFun(){
    document.getElementById("demo").innerHTML = myFriend.age;
}