function ex.1.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<script>
//var num1 = 10;
//var num2 = 20;
//var sum = num1 + num2;
//alert("result : "+ sum);
// function addnumber(){
// var num1 = 10;
// var num2 = 20;
// var sum = num1 + num2;
// alert("result : "+ sum);
// }
// addnumber();
// alert("result : "+ sum);
// var x = 100;
// function test(){
// document.write("x is "+ x +"y is " + y);
// var y = 200;
// }
// test();
// <호이스팅; hoisting>
// y는 undefined로 오류가 나타남
// y로 선언된 값의 default값이 undefined라서 뜨는것
// 결국 초기값을 줘야한다
// function calcSum(n){
// let sum = 0;
// for(let i = 1; i<n+1; i++){
// sum +=i;
// }
// document.write(sum);
// }
// calcSum(10);
//<return 쓰기>
function calcSum(n){
let sum = 0;
for(let i = 1; i<n+1; i++){
sum +=i;
}
return sum;
}
var result = calcSum(10);
document.write(sum);
</script>
</body>
</html>functional_min&max
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<script>
function minvalue(a, b){
var min = 0;
if(a<b){
min=a;
}else{
min=b;
}
return min;
}
var result = minvalue(10, 20);
document.write(result);
function maxvalue(a, b){
var max = 0;
if(a>b){
max=a;
}else{
max=b;
}
return max;
}
var result = maxvalue(30, 20);
document.write(result);
</script>
</body>
</html>Function compare
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<script>
var num1 = parseInt (prompt("첫번 째 숫자 : "));
var num2 = parseInt (prompt("두번 째 숫자 : "));
function compareNumber(su1, su2){
if(su1 == su2){
alert(su1 + "과" + su2 + "는 같다");
}else if(su1 > su2){
alert(su1 + "이" + su2 + "보다 크다");
}else{
alet(su2 + "가" + su1 + "보다 크다");
}
}
compareNumber(num1, num2);
</script>
</body>
</html>Function Display gugudan(구구단)
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<script>
var dan = parseInt(prompt("출력할 단을 입력하세요"));
function displaygugudan(todan){
for(let i=2; i<todan; i++){
for(let j=1; j<10; j++){
document.write(todan+"*" +j+"="+i*j+"");
}
}
}
displaygugudan(dan);
</script>
</body>
</html>Function even-odd
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<script>
var su = parseInt(prompt("판별할 수를 입력하세요"));
function evenodd(num){
if(num %2==0){
alert(num+"은 짝수");
}else{
alert(num+"은 홀수");
}
}
evenodd(su);
</script>
</body>
</html>느낀점
오늘 새로운 강사님의 수업이었다. 기존 강사님께 배운부분을 쉽게 바로 실습하면서 복습할수 있어서 좋았다. 재밌는 수업이었다.
코딩 신생아