02.04숙제

CSS speedrun

{
  const arrBox = [100, 200, 300, 400, 500, 600, 700];
            
  // 300, 400
  const result = arrBox.slice(2,4);
  document.write(result);

  const result2 = arrBox.splice(2,2);
  document.write(result2);

  // 100, 300, 500, 700
  const result3 = arrBox.slice(0,1)+arrBox.slice(2,3)+arrBox.slice(4,5)+arrBox.slice(6,7);
  document.write(result3);

  const result4 = arrBox.splice(0,1)+arrBox.splice(1,1)+arrBox.splice(2,1)+arrBox.splice(3,1);
  document.write(result4);

  // 700
  const result5 = arrBox.find(el => el === 700);
  document.write(result5);

  const result6 = arrBox.filter(el => el === 700);
  document.write(result6);
             
  arrBox2 = ['j', 'b', 'c', 'd', 'e'];
            
  // j
  const result7 = arrBox2.filter(el => el === 'j');
  document.write(result7);

  const result8 = arrBox2.find(el => el === 'j');
  document.write(result8);

  // jc
  const result9 = arrBox2.slice(0,1)+arrBox2.slice(2,3);
  document.write(result9);

  const result10 = arrBox2.splice(0,1)+arrBox2.splice(1,1);
  document.write(result10);

  // jbcd
  const result11 = arrBox2.slice(0,4);
  document.write(result11);;

  const result12 = arrBox2.splice(0,4);
  document.write(result12);;
}