dltwdf/arrayjs.html at master · khin-github1/dltwdf · GitHub

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 <!DOCTYPE html>
<html>
<head>
	<title>Array Js</title>
</head>
<body>
<p>Hi hello</p>
</body>
<script type="text/javascript">
	//manual array
	let j= new Array("aung aung","maung maung","kyaw kyaw");
	console.log(j);
	let k=Array("su su","nu nu","mya mya");
	console.log(k);

	let l=[1200,1300,"aung",1700];
	console.log(l);
	console.log(l[3]);


	//String is Character Array in Js
	let aung= "aung ko ko";
	console.log(aung[5]);

	//outside array
	//let m= new Array();
	let m=[]
	m[0]= "red";
	m[1]="green";
	m[2]="black";
	m[3]="orange";
	m[4]="blue";
	console.log(m);


	// Default Function for array
	// console.log("array to string=" +m.toString());
	// console.log("array to string by special char=" + m.join("/"));
	// console.log("array value count="+ m.length);

	// //Adding array data by behind
	// m.push("gold");
	// m.push("gray");
	// console.log(m);
	// //delete array by behind
	// m.pop();
	// console.log(m);
	// m.pop();
	// console.log(m);
	// document.write(m);

	//remove from start, beware index number
	// m.shift();
	// console.log(m);

	//add data at front
	// m.unshift("yellow");
	// console.log(m);
	//delete is not remove index number,
	//delete m[2];
	//console.log(m);
	// m[2]="pink";
	// console.log(m);
	// Add data, by start from index number
	// m.splice(2,0,"apple","mango","grape");
	// console.log(m);

	//Remove data where to how many
	// m.splice(1,3);
	// console.log(m);


	// Array Combine
	let arr1= ["aung aung","maung maung","zaw zaw","ko ko","kyaw kyaw","kaung kaung"];
	let arr2=["nu nu","mya mya","su su","hla hla"];
	let arr3=[1500,528];
	// let cbm=arr1.concat(arr2);
	// console.log(cbm);


	//get data from exists array, 2 in slice parameter is index number
	// let arr4 = arr1.slice(2);
	// console.log("arr4="+arr4);

	// let arr5 = arr1.slice(0,2);
	// console.log(arr5);
	console.log(arr1);
	//Sort A to Z
	console.log(arr1.sort());
	console.log(arr1.reverse());
	let arr4=[10,23,14,11,50,4,6,7,120,45,300,66];
	console.log(arr4);
	console.log(arr4.sort(function(a,b){
		return a-b;

	}))
	console.log(arr4.sort(function(a,b){
		return b-a;
	}))

	//Array as Object
	//Manual Array (index+value)
	//Associate Array (index+key+Value)

	let arr5=[];
	arr5["firstname"]="Ko";
	arr5["lastname"]="Aung";
	arr5["age"]=26;
	arr5["address"]="Mandalay";
	console.log(arr5);
	console.log(arr5["address"]);

	//Array as Object(API)

	let arr6={
		firstname :"Tin",
		middlenae :"Htut",
		lastname :"Aung",
		age :27
	}
	console.log(arr6);

	let arr7={
		"firstname" :"Tin",
		"middlenae" :"Htut",
		"lastname" :"Aung",
		"age" :27
	}
	console.log(arr7);

	//Comparison Operators
	// == equal to
	// ===equal value and equal type
	// !=not equal
	// !==not equal value and not equal type
	// > greater than
	// < less than
	// >=greater than or equal to
	// <= less than or equal to
	// ? tinary Operators
	let num1=4;
	let num2=2;
	document.write("equal to result="+(num1==num2)+"<br>");
	document.write("equal value and equal type result="+(num1===num2)+"<br>");
	document.write("not equal to result="+(num1!=num2)+"<br>");
	document.write("not equal value and not equal type result="+(num1!==num2)+"<br>");
	document.write("greater than result="+(num1>num2)+"<br>");
	document.write("less than result="+(num1<num2)+"<br>");
	document.write("greater than or equal to result="+(num1>=num2)+"<br>");
	document.write("less than or equal to result="+(num1>=num2)+"<br>");
	document.write("tinary result="+(num1>num2?"Yes,num1 is greater than num2":"No,num1 is not greater than num2")+"<br>");

	// Logical Operator 3
	//&& and
	//|| or
	// ! not
</script>
</html>