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Rainbow๐ŸŒˆCoder
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Rainbow๐ŸŒˆCoder
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๋ธ”๋กœ๊ทธ ๋ฉ”๋‰ด

  • ํ™ˆ
  • ํƒœ๊ทธ
  • ๋ฐฉ๋ช…๋ก

๊ณต์ง€์‚ฌํ•ญ

์ธ๊ธฐ ๊ธ€

ํƒœ๊ทธ

  • MySQL
  • ใ…ฃใ„ท
  • ์œ„์ž„
  • ์ปดํฌ์ง€์…˜

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์ตœ๊ทผ ๊ธ€

ํ‹ฐ์Šคํ† ๋ฆฌ

hELLO ยท Designed By ์ •์ƒ์šฐ.
Rainbow๐ŸŒˆCoder

My dev Note๐Ÿ“’

[๊ธฐ์ดˆ ์ž๋ฐ”์Šคํฌ๋ฆฝํŠธ] ๋“œ๋ฆผ์ฝ”๋”ฉ by ์—˜๋ฆฌ๋‹˜ ์ž๋ฐ”์Šคํฌ๋ฆฝํŠธ ๊ธฐ์ดˆ ๊ฐ•์˜ (ES5+) ์‹œ๋ฆฌ์ฆˆ ์ •์ฃผํ–‰ ๊ธฐ๋ก
Javascript/Javascript

[๊ธฐ์ดˆ ์ž๋ฐ”์Šคํฌ๋ฆฝํŠธ] ๋“œ๋ฆผ์ฝ”๋”ฉ by ์—˜๋ฆฌ๋‹˜ ์ž๋ฐ”์Šคํฌ๋ฆฝํŠธ ๊ธฐ์ดˆ ๊ฐ•์˜ (ES5+) ์‹œ๋ฆฌ์ฆˆ ์ •์ฃผํ–‰ ๊ธฐ๋ก

2022. 3. 25. 12:49
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https://youtu.be/tJieVCgGzhs

** ์—˜๋ฆฌ๋‹˜ ์˜์ƒ ๋‚ด์šฉ + ๊ฐœ์ธ์ ์œผ๋กœ ํ•™์Šตํ•œ ๋ถ€๋ถ„์„ ์„ž์–ด ํฌ์ŠคํŒ…์„ ์ž‘์„ฑํ•˜๋ฏ€๋กœ,

์˜์ƒ ํ๋ฆ„ ๋ฐ ๋‚ด์šฉ๊ณผ ํฌ์ŠคํŒ…์ด ์™„์ „ํ•˜๊ฒŒ ์ผ์น˜ํ•˜์ง€๋Š” ์•Š์Šต๋‹ˆ๋‹ค. (์ฝ˜ํ…์ธ  ์˜ค๋ฅ˜ ์ง€์  ํ™˜์˜)

 

ํ•ต์‹ฌ ๊ฐœ๋… : 'defer' ์™€ 'use strict'

 

์ž๋ฐ”์Šคํฌ๋ฆฝํŠธ ๊ณต์‹์‚ฌ์ดํŠธ๋Š”

 

์ดํฌ๋งˆ http://ecma-international.org/

 

Welcome to Ecma International

  Welcome Ecma International is an industry association founded in 1961, dedicated to the standardization of information and communication systems. We are also here: Since 1961 and continuing in full force today, Ecma International®facilitates the timely

ecma-international.org

MDN https://developer.mozilla.org/ko/docs/Web

 

๊ฐœ๋ฐœ์ž๋ฅผ ์œ„ํ•œ ์›น ๊ธฐ์ˆ 

์›น(World Wide Web)์˜ ๊ฐœ๋ฐฉ์„ฑ์€ ์›น์‚ฌ์ดํŠธ๋‚˜ ์˜จ๋ผ์ธ ์• ํ”Œ๋ฆฌ์ผ€์ด์…˜์„ ์ œ์ž‘ํ•˜๋ ค๋Š” ์‚ฌ๋žŒ๋“ค์—๊ฒŒ ๋งŽ์€ ๊ธฐํšŒ๋ฅผ ์ œ๊ณตํ•ฉ๋‹ˆ๋‹ค. ํ•˜์ง€๋งŒ ๊ทธ ์‚ฌ์šฉ ๋ฐฉ๋ฒ•์„ ์•Œ์•„์•ผ ์›น ๊ธฐ์ˆ ์„ ์ž˜ ํ™œ์šฉํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์•„๋ž˜์˜ ๋งํฌ๏ฟฝ

developer.mozilla.org

w3school - ๊ณต์‹ ์‚ฌ์ดํŠธ๋Š” ์•„๋‹˜

 

 

 

์™ธ๋ถ€ ์Šคํฌ๋ฆฝํŠธ ํŒŒ์ผ ์—ฐ๊ฒฐ

<script src=์ด๋ฆ„.js></script>

 

 

 

์ž๋ฐ”์Šคํฌ๋ฆฝํŠธ ์ž…๋ ฅ๊ณผ ์ถœ๋ ฅ

prompt() ํ•จ์ˆ˜ - ์‚ฌ์šฉ์ž์—๊ฒŒ ์ž…๋ ฅ๊ฐ’ ๋ฐ›๊ธฐ

prompt();  ํ”„๋กฌํ”„ํŠธ ์ฐฝ ๋‚˜ํƒ€๋‚œ๋‹ค > ๋‚ด์šฉ ์ž…๋ ฅ ๊ฐ€๋Šฅ

prompt("์ด๋ฆ„์„ ์ž…๋ ฅํ•˜์„ธ์š”.");  ์ž…๋ ฅํ•œ ๋‚ด์šฉ์ด ํ•จ๊ป˜ ํ‘œ์‹œ๋œ๋‹ค

var name=prompt("์ด๋ฆ„:  ");

 

alert() ํ•จ์ˆ˜ - ์•Œ๋ฆผ ์ฐฝ์œผ๋กœ ์ถœ๋ ฅํ•˜๊ธฐ

alert("ํ™˜์˜ํ•ฉ๋‹ˆ๋‹ค");  ์ž…๋ ฅํ•œ ๋‚ด์šฉ์ด ์•Œ๋ฆผ ์ฐฝ์— ํ‘œ์‹œ๋œ๋‹ค

 

document.write() ํ•จ์ˆ˜ - ์›น ๋ธŒ๋ผ์šฐ์ € ํ™”๋ฉด์— ์ถœ๋ ฅํ•˜๊ธฐ

๊ฒฐ๊ณผ๊ฐ’์„ ๋ธŒ๋ผ์šฐ์ €์— ์ถœ๋ ฅํ•˜๋Š” ์šฉ๋„์ด๋‹ค

var name=prompt("์ด๋ฆ„:  ");

document.write(name + "๋‹˜, ์–ด์„œ์˜ค์„ธ์š”!");  > ํ™๊ธธ๋™ ์“ฐ๋ฉด > ํ™๊ธธ๋™๋‹˜, ์–ด์„œ์˜ค์„ธ์š”! ๋ผ๊ณ  ์ถœ๋ ค๋จ

 

console.log() ํ•จ์ˆ˜ - ์ฝ˜์†”์— ์ถœ๋ ฅํ•˜๊ธฐ

์‚ฌ์šฉ ๋ฐฉ๋ฒ•์€ document.wirte()์™€ ๊ฐ™๋‹ค


<my ์‹ค์Šต>

index.html

<!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>
    <script src="iocheck.js"></script>
  </head>
  <body></body>
</html>

iocheck.js

const username = prompt("์ด๋ฆ„:");
const welcomeNotice = "ํ™˜์˜ํ•ฉ๋‹ˆ๋‹ค!" + username;
alert(welcomeNotice);
document.write(username, "์˜ ๋“ฑ์žฅ!");

๋ฐ˜๋ชฉ๋ฌธ

 

  • while(true/false){~~@~~} else{~~#~~} : true๊ฐ€ ๋‚˜์˜ค๋ฉด @๊ฐ€ ๊ณ„์† ๋ฐ˜๋ณต๋œ๋‹ค. false๊ฐ€ ๋ ๋•Œ๊นŒ์ง€.

 

  • i=0;

      while(i<10){

      document.write("hello world");

        i=i+1;

      }                                                                    :10์ด ๋˜๊ธฐ ์ „๊นŒ์ง€ ๋ฐ˜๋ณตํ•œ๋‹ค.

 

  • <ul>

    <script>

      i=0;

      while(i<10){

        document.write("<li>hello world</li>");

        i=i+1;

      }

    </script>

    </ul>                                                            : ๋ฆฌ์ŠคํŠธ๋กœ ํ‘œํ˜„๋œ๋‹ค.

 

 

 

 

๋ฐฐ์—ด

  • list=new Array("one", "two", "three");   : ๋ฐฐ์—ด์˜ ํ•ญ๋ชฉ์„ ๋‚˜์—ดํ•œ๋‹ค.
  • document.write(list[0]);                     : ๋ช‡๋ฒˆ์งธ ํ•ญ๋ชฉ์ธ์ง€ ์•ž์—์„œ๋ถ€ํ„ฐ ์„ผ๋‹ค. 0๋ถ€ํ„ฐ ์‹œ์ž‘ํ•œ๋‹ค.
  • document.write(list.length);                : ๋ฐฐ์—ด์— ๋ช‡๊ฐœ๊ฐ€ ์žˆ๋Š”์ง€ ์•Œ ์ˆ˜ ์žˆ๋‹ค.

 

 

 

๋ฐฐ์—ด๊ณผ ๋ฐ˜๋ณต๋ฌธ

 

  • list=new Array("๊ฐ•","๊ฐ•","์ˆ ","๋ž˜");

      i=0;

      while(i<list.length){

        document.write(list[i]);

        i=i+1;                                                                                : ๊ฐ•๊ฐ•์ˆ ๋ž˜  ๋ผ๊ณ  ๋‚˜์˜จ๋‹ค.  

      }                                                                                         : ๋ฐฐ์—ด์˜ ๊ฐœ์ˆ˜์— ์•Œ๋งž๊ฒŒ ๋‹ค ๋‚˜์˜จ๋‹ค.

 

  • <ul>

    <script>

      list=new Array("๊ฐ•","๊ฐ•","์ˆ ","๋ž˜");

      i=0;

      while(i<list.length){

        document.write("<li>"+list[i]+"</li>");                                      : ๊ผญ ํฐ๋”ฐ์˜ดํ‘œ์™€ ํ”Œ๋Ÿฌ์Šค ๊ธฐํ˜ธ๋ฅผ ์จ์ค€๋‹ค.                 

        i=i+1;

      }

    </script>

    </ul>                                                                                    : ๋ฆฌ์ŠคํŠธ ํ˜•์‹์œผ๋กœ ๋‚˜์˜จ๋‹ค.


<my ์‹ค์Šต>

index.html

<!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>
    <ul>
      <script src="list.js"></script>
    </ul>
  </body>
</html>

list.js

let i = 0;
while (i < 10) {
  document.write("<li>๊ณง ์žˆ์œผ๋ฉด 4์›”์ž…๋‹ˆ๋‹ค. ์ •์‹  ๋ฐ”์ง ์ฐจ๋ ค์•ผํ•  ๊ฒƒ</li>");
  i = i + 1;
}
const ๊ฐ•๊ฐ•์ˆ ๋ž˜ = new Array("๊ฐ•", "๊ฐ•", "์ˆ ", "๋ž˜");
i = 0;
while (i < ๊ฐ•๊ฐ•์ˆ ๋ž˜.length) {
  document.writeln("<li>" + ๊ฐ•๊ฐ•์ˆ ๋ž˜[i] + "</li>");
  i++;
}
i = 0;
let ๊ฐ•๊ฐ•์ˆ ๋ž˜๋‹จ์–ด = "";
while (i < ๊ฐ•๊ฐ•์ˆ ๋ž˜.length) {
  ๊ฐ•๊ฐ•์ˆ ๋ž˜๋‹จ์–ด += ๊ฐ•๊ฐ•์ˆ ๋ž˜[i];
  i++;
}
document.write("<li>" + ๊ฐ•๊ฐ•์ˆ ๋ž˜๋‹จ์–ด + "</li>");

i = 0;
while (i < ๊ฐ•๊ฐ•์ˆ ๋ž˜.length) {
  document.write(๊ฐ•๊ฐ•์ˆ ๋ž˜[i]);
  i++;
}


ํ•จ์ˆ˜

  • function ํ•จ์ˆ˜์ด๋ฆ„() {~~@~~}
  • ํ•จ์ˆ˜์ด๋ฆ„();

 

  • function a(){

        document.write("Hello Function");

      }

  •  a();

๋ฐ˜๋ณต๋ฌธ๊ณผ ๋‹ค๋ฅธ์ ์€  a();๋ฅผ ์–ด๋””์—์„œ๋‚˜ ์จ๋„ ๋œ๋‹ค. ์ถœ๋ ฅ์ด ๋œ๋‹ค.

 

 

 

 

ํ•จ์ˆ˜์˜ ์ž…๋ ฅ

  • function a(input){

        document.write(input);

      }

      a(2);                                           : 2๋ฅผ ๋„ฃ์œผ๋ฉด 2๊ฐ€ ๋‚˜์˜จ๋‹ค. 3์„ ๋„ฃ์œผ๋ฉด 3์ด ๋‚˜์˜จ๋‹ค. input์œผ๋กœ ๋™์ผํ•˜๊ฒŒ ํ–ˆ๋‹ค.

 

  • function a(input){

        document.write(input+1);

      }

      a(5);                                            : a์— ์žˆ๋Š” 5๊ฐ€ input์œผ๋กœ ๋“ค์–ด๊ฐ„๋‹ค. ๊ทธ๋ฆฌ๊ณ  1์ด ๋”ํ•ด์ง„๋‹ค.

 

 

 

ํ•จ์ˆ˜์˜ ์ถœ๋ ฅ

  • function a(input){

        return input+1;

      }

 

      document.write(a(5));          : a์— ์žˆ๋Š” 5๊ฐ€ input์œผ๋กœ ๋“ค์–ด๊ฐ„๋‹ค. ๊ทธ๋ฆฌ๊ณ  return ๊ฐ’์ด ๋‚˜์˜ค๋ฉด ๊ทธ ๋’ค์— ์žˆ๋Š” ๊ฐ’์ด ์ถœ๋ ฅ๋œ๋‹ค.6.

     

      prompt(a(5));                            : ์•Œ๋ฆผ์ฐฝ์ด ๋œจ๋ฉด์„œ 6์ด ๋‚˜์˜จ๋‹ค. ์ถœ๋ ฅ ํ•จ์ˆ˜์ด๋‹ค.

 

  • prompt()๋Š” ๋‚ด์žฅ๋˜์–ด์žˆ๋Š” ํ•จ์ˆ˜์ด๋‹ค. built-in function.
  • write()๋Š” ๋‚ด์žฅ๋˜์–ด์žˆ๋Š” ํ•จ์ˆ˜์ด๋‹ค.
  • document. ๋Š” ๊ฐ์ฒด์ด๋‹ค. ์„ฑ๊ฒฉ์ด ๋น„์Šทํ•œ ํ•จ์ˆ˜๋ฅผ ๋ถ„๋ฅ˜ํ•ด์„œ  ๋ฌถ์–ด์ค€๋‹ค.

JS ์ด๋ฒคํŠธ ํƒœ๊ทธ  ์ผ๋‹จ ์ƒ๋žต

css ํ™œ์šฉํ•˜์—ฌ ์šฐ์ธก ์ƒ๋‹จ ๋ฐค/๋‚ฎ ์ „ํ™˜ ๋ฒ„ํŠผ ๋งŒ๋“ค๊ธฐ
โ–ถ CSS ํŠน์ •๋ ˆ์ด์–ด ๊ณ ์ •

<style type="text/css">

#originLayerStatic {position:static;}

#LeftTopLayerFixed {position:fixed;left:0;top:0}

#RightTopLayerFixed {position:fixed;right:0;top:0}

#LeftBottomLayerFixed {position:fixed;left:0;bottom:0}

#RightBottomLayerFixed {position:fixed;right:0;bottom:0}

</style>

์œ„์—์„œ ๋ถ€ํ„ฐ ์ขŒ์ธก์ƒ๋‹จ, ์šฐ์ธก์ƒ๋‹จ, ์ขŒ์ธกํ•˜๋‹จ, ์šฐ์ธกํ•˜๋‹จ ๊ณ ์ •์‹œํ‚ค๋Š” CSS

index.html

 

<!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>
    <link href="buttonstyle.css" rel="stylesheet" />
    <script defer src="eventtag.js"></script>
  </head>
  <body>
    <input type="text" id="msg" />
    <div id="result"></div>
    <input
      id="inputbtn"
      type="button"
      value="Go!"
      onclick="alert('test yet')"
    />
    <div id="daynightbtn">
      <input type="button" value="Day" />
      <input type="button" value="Night" />
    </div>
  </body>
</html>

btn.css

#daynightbtn {
  float: right;
  position: fixed;
  right: 10px;
  top: 10px;
}

eventtag.js

//onfocus : https://www.w3schools.com/jsref/event_onfocus.asp

const msg = document.querySelector("#msg");
const result = document.querySelector("#result");

msg.onfocus = function (e) {
  result.innerHTML = "onfocus ์ด๋ฒคํŠธ ๋ฐœ๋™";
};
msg.onblur = function (e) {
  if (msg.value.length < 6) {
    alert("์ตœ์†Œ 6์ž๋ฆฌ์—ฌ์•ผ ํ•ฉ๋‹ˆ๋‹ค!");
  } else {
    result.innerHTML = "ํฌ์ปค์Šค ๋น ์ ธ๋‚˜๊ฐ„ ์ƒํƒœ, ํ™˜์˜ํ•ฉ๋‹ˆ๋‹ค! Hello World!";
  }
};

<head>

<script defer src="main.js"></script>

</head>

defer ์†์„ฑ์„ ์‚ฌ์šฉํ•˜๋ฉด, 

๋ฐ”๋””๊นŒ์ง€ ๋ Œ๋”๋ง ํ•œ ํ›„์—, js ์ฝ”๋“œ๋ฅผ ์‹คํ–‰ํ•œ๋‹ค. ๋”ฐ๋ผ์„œ ํ•ด๋‹น js ์—์„œ Html ๋ฐ”๋””์— ์ ‘๊ทผํ•˜๋Š” ๊ฒƒ์ด ์ „๋ถ€ ๊ฐ€๋Šฅ!

-HTMLํŒŒ์ผ ํŽ„์‹ฑํ•˜๋‹ค๊ฐ€ (script ๋งŒ๋‚˜๋ฉด) ๋ณ‘๋ ฌ๋กœ JS ๊ฐ™์ด ๋‹ค์šด, (HTML ํŽ„์‹ฑ ์™„๋ฃŒ ํ›„) JS ์‹คํ–‰

-HTML ํŽ„์‹ฑํ•˜๋Š” ๋™์•ˆ (JS๊ฐ€ ์—ฌ๋Ÿฌ๊ฐœ๋ผ๋„) ๋ณ‘๋ ฌ JS ๋‹ค์šด, ์ดํ›„์— ์—ฌ๋Ÿฌ๊ฐœ JS๋ฅผ ์ˆœ์„œ๋Œ€๋กœ ์‹คํ–‰

 

 

use strict

- ํƒ€์ž…์Šคํฌ๋ฆฝํŠธ๋ฅผ ํ•  ๋•Œ๋Š” ์ „ํ˜€ ์„ ์–ธํ•  ํ•„์š”๊ฐ€ ์—†์ง€๋งŒ,

- ์ˆœ์ˆ˜ ๋ฐ”๋‹๋ผ ์ž๋ฐ”์Šคํฌ๋ฆฝํŠธ ์‚ฌ์šฉํ•  ๋•Œ 'use strict'; ์„ ์–ธํ•˜๋Š” ๊ฒƒ์ด ์ข‹๋‹ค.

- JS๋Š” ๋งค์šฐ ์œ ์—ฐํ•œ(๊ณ ๋กœ ์œ„ํ—˜ํ•œ) ์–ธ์–ด์ด๊ธฐ ๋•Œ๋ฌธ์ด๋‹ค

- ์ดํฌ๋งˆ์Šคํฌ๋ฆฝํŠธ5์— ๋”ฐ๋ฅธ๋‹ค๋Š” ์˜๋ฏธ (์ƒ์‹์ ์ธ ๋ฒ”์œ„์•ˆ์—์„œ)

 


<my ์‹ค์Šต>

index.html

<!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>
    <script src="prompt.js" defer></script>
    <script src="hello.js" defer></script>
  </head>
  <body></body>
</html>

 

prompt.js

"use strict";

const password = prompt("๋น„๋ฐ€๋ฒˆํ˜ธ");

if (password == "1111") {
  document.write("๋น„๋ฐ€๋ฒˆํ˜ธ๋ฅผ ์ œ๋Œ€๋กœ ์ž…๋ ฅํ•˜์…จ์Šต๋‹ˆ๋‹ค.");
} else {
  document.write("ํ‹€๋ฆฐ ๋น„๋ฐ€๋ฒˆํ˜ธ!!!");
}

hello.js

const hello = "์•ˆ๋…•ํ•˜์„ธ์š”.";
document.body.innerText = hello;

https://youtu.be/OCCpGh4ujb8

https://youtu.be/yOdAVDuHUKQ

 

๋ฐฐ์—ด

 

 

 

https://youtu.be/3CUjtKJ7PJg

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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    Rainbow๐ŸŒˆCoder
    ๋ชฐ๋ผ๋„ ๊ฒฐ๊ตญ์€ ์•„๋Š” ๊ฐœ๋ฐœ์ž, ๊ทธ๋Ÿฐ ์‚ฌ๋žŒ์ด ๋˜๊ธฐ ์œ„ํ•œ ๋งค์ผ์˜ ํ•œ๊ฑธ์Œ

    ํ‹ฐ์Šคํ† ๋ฆฌํˆด๋ฐ”