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๐Ÿ”ค Language/๐ŸŸจ JavaScript

JS. ๋ฆฌํŽ™ํ† ๋ง ์ค‘๋ณต์ œ๊ฑฐ

2022. 1. 7. 14:57

๋ฆฌํŽ™ํ† ๋ง

  <input id="night_day" type="button" value="night" onclick="
  var target =   document.querySelector('body');
  if(document.querySelector('#night_day').value === 'night'){
  target.style.backgroundColor = 'black';
  target.style.color = 'white';
  this.value = 'day';
  } else {
  target.style.backgroundColor = 'white';
  target.style.color = 'black';
  this.value = 'night';
  }
  ">

var์„ ์‚ฌ์šฉํ•˜์—ฌ ์ค‘๋ณต์„ ์ œ๊ฑฐํ•  ์ˆ˜ ์žˆ๋‹ค.

  <input type="button" value="night" onclick="
  if(this.value === 'night'){
  document.querySelector('body').style.backgroundColor = 'black';
  document.querySelector('body').style.color = 'white';
  this.value = 'day';
  } else {
  document.querySelector('body').style.backgroundColor = 'white';
  document.querySelector('body').style.color = 'black';
  this.value = 'night';
  }
  ">

this.value๋ฅผ ์‚ฌ์šฉํ•˜๋ฉด ๋ฒ„ํŠผ์„ ๋ˆŒ๋Ÿฌ๋„ night์—์„œ day๋กœ ์•ˆ๋ฐ”๋€Œ์—ˆ๋˜ ํ˜„์ƒ์„ ๊ณ ์น  ์ˆ˜ ์žˆ๋‹ค.

 

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