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Stack flows in you
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Zoeeey

Stack flows in you

๐ŸŸจ JavaScript/๋ฌธ์ œํ’€๊ธฐ (ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค, ์ฝ”๋”ฉ์• ํ”Œ)

Level 1 : 1~5 (์ˆ™์ œ ๋ฐ ๊นจ๋‹ฌ์€ ์ )

2023. 1. 2. 20:29

1. ํฐํŠธ์‚ฌ์ด์ฆˆ ๋ณ€๊ฒฝํ•˜๊ธฐ

document.getElementById('hello').style.fontSize = '16px

2. ์•Œ๋ฆผ์ฐฝ ์—ด๊ธฐ/๋‹ซ๊ธฐ

let alertBox = document.getElementsByClassName('alert-box');
let openBtn = document.getElementsByClassName('open');
let closeBtn = document.getElementsByClassName('close');

openBtn[0].addEventListener("click", function() {
    alertBox[0].style.display = "block";
})
closeBtn[0].addEventListener("click", function() {
    alertBox[0].style.display = "none";
})

๊นจ๋‹ฌ์€ ์  : getElementsByClassName์œผ๋กœ ๊ฐ€์ ธ์˜จ ์š”์†Œ๋Š” ๋ฐฐ์—ด์ด๋ฏ€๋กœ [0]์„ ์ถ”๊ฐ€ํ•ด์ค˜์•ผ ์ธ์‹๋œ๋‹ค.


3. ์•Œ๋ฆผ์ฐฝ ์—ด๊ธฐ/๋‹ซ๊ธฐ ๋ฐ ์•Œ๋ฆผ์ฐฝ ํ…์ŠคํŠธ ๋ณ€๊ฒฝํ•˜๊ธฐ

let alertBox = document.getElementById('alert');
function alertBtn(styleDisplay, innerText) {
    alertBox.getElementsByTagName('p')[0].innerHTML = innerText;
    alertBox.style.display = styleDisplay;
}

๊นจ๋‹ฌ์€ ์  : innerHTML์€ ์•ˆ์— ์žˆ๋Š” ํƒœ๊ทธ ์ „์ฒด๋ฅผ ํฌํ•จํ•ด ๋ณ€ํ™˜ํ•ด๋ฒ„๋ฆฐ๋‹ค. getElementsByTagName์œผ๋กœ ํŠน์ •ํ•ด์„œ ๋ฐ”๊ฟ”์ฃผ์—ˆ๋‹ค.


4. ๋„ค๋น„๊ฒŒ์ด์…˜ ๋ฐ” ํ–„๋ฒ„๊ฑฐ ๋ฒ„ํŠผ ๊ตฌํ˜„ํ•˜๊ธฐ

document.getElementsByClassName('navbar-toggler')[0].addEventListener('click', function(){
    document.getElementsByClassName('list-group')[0].classList.toggle('show');
})

๊นจ๋‹ฌ์€ ์  : element.className += ''๋Š” ํด๋ž˜์Šค๋ช…์— ๋ฌธ์ž์—ด์„ ์ž…๋ ฅํ•˜๋Š” ๊ฒƒ์ด๋ฏ€๋กœ ํด๋ฆญํ•  ๋•Œ๋งˆ๋‹ค ๋ฐ˜๋ณตํ•ด์„œ ์ถ”๊ฐ€๋˜๋ฉฐ ๋ฌธ์ž ์˜†์— ์ŠคํŽ˜์ด์Šค๋ฅผ ์ž…๋ ฅํ•ด์•ผ ํ•œ๋‹ค. element.classList.add('')๋Š” ๊ณ„์† ํด๋ฆญํ•˜๋”๋ผ๋„ ํด๋ž˜์Šค๊ฐ€ ํ•œ ๋ฒˆ๋งŒ ๋‚˜ํƒ€๋‚œ๋‹ค. element.classList.toggle('')๋Š” ํด๋ฆญ์‹œ ํ† ๊ธ€๋œ๋‹ค.


5. ๋ชจ๋‹ฌํŒ์—… ๊ตฌํ˜„ํ•˜๊ธฐ

document.querySelector('#modal-btn').addEventListener('click',modalToggle);
document.querySelector('#close').addEventListener('click', modalToggle);

function modalToggle() {
    document.querySelectorAll('.black-bg')[0].classList.toggle('show');
}

์ถœ์ฒ˜ : ์ฝ”๋”ฉ์• ํ”Œ https://codingapple.com/

์ €์ž‘์žํ‘œ์‹œ ๋น„์˜๋ฆฌ ๋™์ผ์กฐ๊ฑด (์ƒˆ์ฐฝ์—ด๋ฆผ)

'๐ŸŸจ JavaScript > ๋ฌธ์ œํ’€๊ธฐ (ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค, ์ฝ”๋”ฉ์• ํ”Œ)' ์นดํ…Œ๊ณ ๋ฆฌ์˜ ๋‹ค๋ฅธ ๊ธ€

Level 3 : 1~3 (array, object)  (0) 2023.01.31
[์ค‘์š”] Level 2 : 14,15(์ˆ™์ œ ๋ฐ ๊นจ๋‹ฌ์€ ์ )_for, ๋ฒ„๋ธ”๋งํ™œ์šฉ์ถ•์•ฝ๋ฒ„์ „  (0) 2023.01.13
Level 2 : 6~13(์ˆ™์ œ ๋ฐ ๊นจ๋‹ฌ์€ ์ )_scroll  (0) 2023.01.12
Level 2 : 1~5 (์ˆ™์ œ ๋ฐ ๊นจ๋‹ฌ์€ ์ )_if๋ฌธ  (0) 2023.01.09
Level 1 : 6~12 (์ˆ™์ œ ๋ฐ ๊นจ๋‹ฌ์€ ์ )  (0) 2023.01.08
    '๐ŸŸจ JavaScript/๋ฌธ์ œํ’€๊ธฐ (ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค, ์ฝ”๋”ฉ์• ํ”Œ)' ์นดํ…Œ๊ณ ๋ฆฌ์˜ ๋‹ค๋ฅธ ๊ธ€
    • [์ค‘์š”] Level 2 : 14,15(์ˆ™์ œ ๋ฐ ๊นจ๋‹ฌ์€ ์ )_for, ๋ฒ„๋ธ”๋งํ™œ์šฉ์ถ•์•ฝ๋ฒ„์ „
    • Level 2 : 6~13(์ˆ™์ œ ๋ฐ ๊นจ๋‹ฌ์€ ์ )_scroll
    • Level 2 : 1~5 (์ˆ™์ œ ๋ฐ ๊นจ๋‹ฌ์€ ์ )_if๋ฌธ
    • Level 1 : 6~12 (์ˆ™์ œ ๋ฐ ๊นจ๋‹ฌ์€ ์ )
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