promises progress

1 files changed, 13 insertions, 0 deletions

diff --git a/app/client/util/index.js b/app/client/util/index.js
index 6ae1f64..75992d9 100644
--- a/app/client/util/index.js
+++ b/app/client/util/index.js
@@ -25,6 +25,19 @@ export function randrange(a,b){ return Math.random() * (b-a) + a }
 
 document.body.style.backgroundImage = 'linear-gradient(' + (randint(40)+40) + 'deg, #fde, #ffe)'
 
+export const allProgress = (promises, progress_cb) => {
+ let d = 0;
+  progress_cb(0);
+  promises.forEach((p) => {
+    p.then((s) => {
+      d += 1
+      progress_cb((d * 100) / promises.length, d, promises.length)
+      return s
+    })
+  })
+  return Promise.all(promises)
+}
+
 export function timeInSeconds(n){
   return (n / 10).toFixed(1) + ' s.'
 }