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HW20 done

Alyona Brytvina 2 years ago
parent
3af74ef72f
commit
a80ca8af33
2 changed files with 50 additions and 0 deletions
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  1. 10 0
      HW20/index.html
  2. 40 0
      HW20/main.js

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HW20/index.html
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+<!DOCTYPE html>
 
+<html lang="en">
 
+<head>
 
+    <meta charset="UTF-8">
 
+    <title>HW20</title>
 
+</head>
 
+<body>
 
+<script src="main.js"></script>
 
+</body>
 
+</html>

+ 40 - 0
HW20/main.js
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+const delay = (ms) => new Promise(ok => setTimeout(() => ok(ms), ms));
 
+
 
+function run(gena) {
 
+    let iter = gena();
 
+
 
+    function next (result, error) {
 
+        let value, done;
 
+        if (!error) {
 
+            [{value, done}] = [iter.next(result)];
 
+            console.log(  [{value, done}])
 
+        } else {
 
+            [{value, done}] = [iter.throw(result)];
 
+            console.log(  [{value, done}])
 
+        }
 
+        if(done){
 
+            return;
 
+        }
 
+        if (value && typeof value?.then === 'function') {
 
+            value.then(next, err => next(undefined, err));
 
+        }else{
 
+           next({value})
 
+        }
 
+    }
 
+    next()
 
+}
 
+run(likeAsync);
 
+
 
+function* likeAsync() {
 
+    console.log(1);
 
+    console.log(yield 1.5);
 
+    let res1 = yield delay(2000);
 
+    console.log(2, res1);
 
+    let res2 = yield delay(2000);
 
+    console.log(3, res2);
 
+    try {
 
+        console.log(yield fetch('httpshghh://localhost:8080'));
 
+    } catch (e) {
 
+        console.log(e, 'Hi ERROR');
 
+    }
 
+}