Word wrapping of given input string such that every line cannot exceed max length and breaking word is not allowed.

wordwrap.js

const wrap = (text, length) => {
    const words = text.split(' ')
    let line = ''
    let lastWord = ''
    const result = []
    for (let i = 0; i < words.length; i++) {
        if (length > (words[i].length + line.length)) {
            line += words[i] + ' '
            continue
        }
        if (words[i].length >= length) {
            result.push(line)
            continue
        }
        result.push(line.trimEnd())
        line = words[i] + ' '
    }
    if (line.length) {
        result.push(line.trimEnd())
    }
    return result
}

const text = 'It\'s fairly primitive - it splits on spaces, tabs and dashes. It does make sure that dashes stick to the ' +
    'word before it (so you don\'t end up with stack-overflow) though it doesn\'t favour moving small hyphenated words to ' +
    'a newline rather than splitting them. It does split up words if they are too long for a main line. Check if it works.'
const words = wrap(text, 19)

console.log(words)