initialisation with SMETI code

frontend/src/scripts/tools/delai.js

@@ -0,0 +1,27 @@
+/*
+ * Fonction pour introduire une attente
+ * usage : await delai(1000);
+ */
+function delai(milliseconds){
+    return new Promise(resolve => {
+        setTimeout(resolve, milliseconds);
+    });
+}
+
+var waitLoop = (ms) => {
+    const start = Date.now();
+    let now = start;
+    while (now - start < ms) {
+      now = Date.now();
+    }
+}
+
+async function attendre1(milliseconds)
+{
+    await delai(milliseconds);
+}
+
+function attendre(milliseconds)
+{
+    waitLoop(milliseconds);
+}