[Day12] Key Sequence Detection (KONAMI CODE)

[Day12] Key Sequence Detection (KONAMI CODE)

按键序列检测

需要用到的技巧与练习目标

1. keyup
2. splice
3. join
4. include

splice

splice( 从要删除的索引位置开始 , 删除的元素数量 ,要插入的元素)

var myFish = ['angel', 'clown', 'mandarin', 'sturgeon'];
var removed = myFish.splice(2, 0, 'drum');

// 从第二个索引 删除0个 并且加入"drum"
// myFish 为 ["angel", "clown", "drum", "mandarin", "sturgeon"]

const pressed =[];
const secretCode = 'wesbos'

window.addEventListener('keyup',(e)=>{ 
pressed.push (e.key);
pressed.splice( -secretCode.length - 1 , pressed.length -secretCode.length );

if(pressed.join('').includes(secretCode)){
 console.log('Ding! Ding!')
}

})