Split First name and Last name using javascript

Question

I have a user with a name Paul Steve Panakkal. It\'s a long name it won\'t fit to the div container. So is there anyway to split first name and lastname fro

Answer 1

Extended version of Speransky Danil's answer which handles the case where the supplied string has only one word in it.

/**
 * Gets the first name, technically gets all words leading up to the last
 * Example: "Blake Robertson" --> "Blake"
 * Example: "Blake Andrew Robertson" --> "Blake Andrew"
 * Example: "Blake" --> "Blake"
 * @param str
 * @returns {*}
 */
exports.getFirstName = function(str) {
    var arr = str.split(' ');
    if( arr.length === 1 ) {
        return arr[0];
    }
    return arr.slice(0, -1).join(' '); // returns "Paul Steve"
}

/**
 * Gets the last name (e.g. the last word in the supplied string)
 * Example: "Blake Robertson" --> "Robertson"
 * Example: "Blake Andrew Robertson" --> "Robertson"
 * Example: "Blake" --> ""
 * @param str
 * @param {string} [ifNone] optional default value if there is not last name, defaults to ""
 * @returns {string}
 */
exports.getLastName = function(str, ifNone) {
    var arr = str.split(' ');
    if(arr.length === 1) {
        return ifNone || "";
    }
    return arr.slice(-1).join(' ');
}