[Day17] Sorting Band Names without articles

文字順序排列

需要用到的技巧與練習目標

1. sort
2. trim
3. replace

const bands = ['The Plot in You', 'The Devil Wears Prada', 'Pierce the Veil', 'Norma Jean', 'The Bled', 'Say Anything', 'The Midway State', 'We Came as Romans', 'Counterparts', 'Oh, Sleeper', 'A Skylit Drive', 'Anywhere But Here', 'An Old Dog'];

const strip(bandName){
return bandName.replace(/^(a |the |an  )/i,'').trim();
}

const sortedBands = bands.sort((a,b)=> strip(a)>strip(b)?1:-1)


document.querySelector('#band').innerHTML=sortedBands.map(item =>
`<li>${item}</li>`
).join('');