Use const wherever possible in js/

[plack-app-gruntmaster.git] / js / 90-timers.js

diff --git a/js/90-timers.js b/js/90-timers.js
index c9b095039873c84b3f886eaaac06c2b48ee510d7..8833a114289a7ee6ef3765f36101f1d766592788 100644 (file)
--- a/js/90-timers.js
+++ b/js/90-timers.js
@@ -1,25 +1,22 @@
 let offset = 0;
 
 function update_timer(timer){
-       var start = parseInt(timer.dataset.start);
-       var stop  = parseInt(timer.dataset.stop);
-       var value = parseInt(timer.dataset.value);
-       var now   = Math.floor(Date.now() / 1000) + offset;
+       const start = parseInt(timer.dataset.start);
+       const stop  = parseInt(timer.dataset.stop);
+       const value = parseInt(timer.dataset.value);
+       const now   = Math.floor(Date.now() / 1000) + offset;
 
-       var left = stop - now;
-       var total = stop - start;
-       if(left < 0)
-               left = 0;
+       const left = Math.max(stop - now, 0);
+       const total = stop - start;
 
-       if(value) {
-               value = Math.max(value * 3 / 10, value * left / total);
-               timer.innerHTML = Math.floor(value);
-       } else {
-               var hours = Math.floor(left / 60 / 60);
+       if(value)
+               timer.innerHTML = Math.floor(Math.max(value * 3 / 10, value * left / total));
+       else {
+               let hours = Math.floor(left / 60 / 60);
                hours = hours < 10 ? '0' + hours : hours;
-               var minutes = Math.floor(left / 60) % 60;
+               let minutes = Math.floor(left / 60) % 60;
                minutes = minutes < 10 ? '0' + minutes : minutes;
-               var seconds = left % 60;
+               let seconds = left % 60;
                seconds = seconds < 10 ? '0' + seconds : seconds;
                timer.innerHTML = hours + ':' + minutes + ':' + seconds;
        }
@@ -31,10 +28,10 @@ $(() => {
                setInterval(() => update_timer(item), 1000);
        });
        if($('.timer').length > 0) {
-               let xhr = new XMLHttpRequest();
+               const xhr = new XMLHttpRequest();
                xhr.open('HEAD', '/');
                xhr.onload = () => {
-                       let srvtime = Date.parse(xhr.getResponseHeader('Date'));
+                       const srvtime = Date.parse(xhr.getResponseHeader('Date'));
                        offset = Math.ceil((srvtime - Date.now()) / 1000);
                        console.log("Offset from server: " + offset);
                };