/js-word-wrap-alogithm

Primary LanguageJavaScript

JavaScript words wraping alogithm

Task: Test yourself by wrapping lines at a given number of columns without breaking words.

Solution by: @karinhan

Note: My tests in index.js file

Source preview:

function wordWrap(str, width) {
    validateWordWrapArgs(str, width);

    const words = str.split(' ');

    for (let wordIndex = 0; wordIndex < words.length; wordIndex++) {
        const word = words[wordIndex];
        const nextWord = words[wordIndex + 1];
        const wordsCanFitOnSameLine = (word + nextWord).length + 1 <= width;
        if (nextWord && wordsCanFitOnSameLine) {
            words[wordIndex] = word + ' ' + nextWord; // merges nextWord into word
            words.splice(wordIndex + 1, 1); // removes nextWord afer merging into word
            --wordIndex;
        }
    }

    return words.join('\n');
}

Note: tests from eduactive.io image