Code samples showing how to add Twitter button into a Meteor application

welcomePage.html

<template name='welcomePage'>
    <a href="https://twitter.com/intent/tweet?screen_name=TemplHub" 
       class="twitter-mention-button" 
       data-related="TemplHub">
        Tweet to @TemplHub 
    </a>
</template>

welcomePage.js

Template.welcomePage.rendered = function () {
    addTwitterWidget();
}

function addTwitterWidget() {
    !function (d, s, id) {
        var js, fjs = d.getElementsByTagName(s)[0], 
            p = /^http:/.test(d.location) ? 'http' : 'https';
        if (!d.getElementById(id)) {
            js = d.createElement(s);
            js.id = id;
            js.src = p + '://platform.twitter.com/widgets.js';
            fjs.parentNode.insertBefore(js, fjs);
        }
    }(document, 'script', 'twitter-wjs');
}