hyphenate
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let str = "hello world"
let arr=str.split('')
let newarr=[];
let vowels =['a', 'e', 'i', 'o', 'u'
]
for(let i=0; i<arr.length; i++){
if(!(vowels.includes(arr[i])) && !(vowels.includes(arr[i+1]))){
newarr.push(arr[i])
newarr.push('-')
}
else
newarr.push(arr[i])
}
if(newarr[newarr.length-1] === "-")
newarr.pop()
console.log(newarr.join(''))
JavaScript
INFO