/**
 * Check and count occurrence of each word in a string
 * Inputs a String eg. Madonna and Boolean
 */

const checkWordOccurrence = (str, isCaseSensitive = false) => {
    if (typeof str != 'string') {
        throw new TypeError('The first param should be a string');
    }
    if (typeof isCaseSensitive != 'boolean') {
        throw new TypeError('The second param should be a boolean')
    }

    let result = {}
    if (str.length > 0) {
        for (let i = 0; i < str.length; i++) {
            const word = isCaseSensitive ? str[i] : str[i].toUpperCase()
            if(/\s/.test(word)) continue;
            result[word] = (!result[word]) ? 1 : result[word] + 1
        }

    }
    return result;
}
export { checkWordOccurrence }