3Count Occurrences

function solve (input) {
    let match = input.shift ();
    let result=[];
    for (let name of input) {
        let regex =  new RegExp(match,"g");
        let exec = regex.exec(name);
        while (exec) {
            result.push(exec[0]);
            exec = regex.exec(name);
        }
    }

    result != [] ? console.log(result.length) : console.log(0);
}