https://help.2dehands.be/s/recaptcha.js

1var verifyCallback = function (token) {
2    document.dispatchEvent(new CustomEvent('onRecaptchaVeried', {detail : {'token':token}}));
3}
4var expireCallback = function() {
5    console.log('expireCallback');
6};
7var errorCallback = function() {
8    console.log('errorCallback');
9};
10
11document.addEventListener('grecaptchaReset', function(event) {
12    grecaptcha.reset();
13});
14
15document.addEventListener('grecaptchaExecute', function(event) {
16    grecaptcha.execute();
17});
18
19document.addEventListener('grecaptchaRender', function(event) {
20    //e.detail.element
21    grecaptcha.render('cs-g-recaptcha', {
22        'sitekey': event.detail.key,
23        'callback': verifyCallback,
24        'expired-callback': expireCallback,
25        'error-callback': errorCallback
26    });   
27});