const compareIJ = (x, y) => {
var a = x.toLowerCase()
var b = y.toLowerCase()
// combined char i+j
if (a.startsWith('ij') && b.startsWith('i') ) {
return -1
} else if (a.startsWith('ij') && b.startsWith('j')){
return 1
}
if (a.startsWith('i') && b.startsWith('ij')) {
return -1
} else if (a.startsWith('j') && b.startsWith('ij')){
return 1
}
return 0;
}
const customSort = ({data, sortBy}) => {
const sortByObject = sortBy.reduce(
(arr, item) => {
arr.push(item)
return arr
}, [])
return data.sort((a, b) => {
return sortByObject.indexOf(a[0]) - sortByObject.indexOf(b[0])
}).sort(compareIJ)
}
var items = ['wer', 'qwe','ijsdf','lkj','fgh','asdf','bsdfs','csdf','ijsaasdf','isdf','ijsdf', 'jsdf', 'ksdf', 'wer', 'qwe']
const dutchAlphabet = ['a','b','c','d','e','f','g','h','i','ij','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z']
var a = customSort({data: items, sortBy: dutchAlphabet})
console.log(a)
