pxt-core/docfiles/tickevent.html

Microsoft MakeCode provides Blocks / JavaScript / Python tools and editors

<script type="text/javascript">
    if (!window.pxtTickEvent) {
        let queuedTicks;
        window.pxtTickEvent = function(id, data) {
            if (window.appInsights && window.appInsights.trackEvent) {
                sendTick(id, data);
            } else {
                if (!queuedTicks) {
                    queuedTicks = [];
                    var interval = window.setInterval(function() {
                        if (window.appInsights && window.appInsights.trackEvent) {
                            window.clearInterval(interval);
                            for (var i = 0; i < queuedTicks.length; i++) {
                                queuedTicks[i]();
                            }
                            queuedTicks = undefined;
                        }
                    }, 1000);
                }

                if (queuedTicks.length >= 100) {
                    queuedTicks.shift();
                }

                queuedTicks.push(function () {
                    sendTick(id, data);
                });
            }

            function sendTick(id, data) {
                const props = {};
                const measures = {};
                if (data) {
                    Object.keys(data).forEach(k => {
                        if (typeof data[k] == "string") props[k] = data[k];
                        else if (typeof data[k] == "number") measures[k] = data[k];
                        else props[k] = JSON.stringify(data[k] || '');
                    });
                } else {
                    data = {};
                }
                window.appInsights.trackEvent({name: id, properties: data, measurements: measures});
            }
        }
    }
</script>