Substring Count

var input = [
    ['in', 'We are living in a yellow submarine. We don\'t have anything else. Inside the submarine is very tight. So we are drinking all the day. We will move out of it in 5 days.'],
    ['your', 'No one heard a single word you said. They should have seen it in your eyes. What was going around your head.'],
    ['but', 'But you were living in another world tryin\' to get your message through.']
];

function countSubstringOccur(value) {
    var delim = value[0];
    var text = value[1];
    var regex = new RegExp(delim, 'gi');
    //console.log(text.match(regex));
    var occurencesCount = (text.match(regex) || []).length;
    console.log(occurencesCount);
}

input.forEach(countSubstringOccur);