Run Prettier on JS code fences, part 13 (mdn#21778)

The PR focuses only on JS code fences.

Idea is to gradually prettify all the JS code fences before the full automation.

files/en-us/web/javascript/reference/global_objects/proxy/proxy/deleteproperty/index.md

@@ -68,24 +68,27 @@ If the following invariants are violated, the proxy will throw a
 The following code traps the {{jsxref("Operators/delete", "delete")}} operator.
 
 ```js
-const p = new Proxy({}, {
-  deleteProperty(target, prop) {
-    if (!(prop in target)) {
-      console.log(`property not found: ${prop}`);
-      return false;
-    }
-    delete target[prop];
-    console.log(`property removed: ${prop}`);
-    return true;
-  },
-});
+const p = new Proxy(
+  {},
+  {
+    deleteProperty(target, prop) {
+      if (!(prop in target)) {
+        console.log(`property not found: ${prop}`);
+        return false;
+      }
+      delete target[prop];
+      console.log(`property removed: ${prop}`);
+      return true;
+    },
+  }
+);
 
 p.a = 10;
-console.log('a' in p); // true
+console.log("a" in p); // true
 
 const result1 = delete p.a; // "property removed: a"
 console.log(result1); // true
-console.log('a' in p); // false
+console.log("a" in p); // false
 
 const result2 = delete p.a; // "property not found: a"
 console.log(result2); // false

files/en-us/web/javascript/reference/global_objects/proxy/proxy/get/index.md

@@ -73,22 +73,26 @@ If the following invariants are violated, the proxy will throw a
 The following code traps getting a property value.
 
 ```js
-const p = new Proxy({}, {
-  get(target, property, receiver) {
-    console.log(`called: ${property}`);
-    return 10;
-  },
-});
+const p = new Proxy(
+  {},
+  {
+    get(target, property, receiver) {
+      console.log(`called: ${property}`);
+      return 10;
+    },
+  }
+);
 
-console.log(p.a); // "called: a"
-                  // 10
+console.log(p.a);
+// "called: a"
+// 10
 ```
 
 The following code violates an invariant.
 
 ```js
 const obj = {};
-Object.defineProperty(obj, 'a', {
+Object.defineProperty(obj, "a", {
   configurable: false,
   enumerable: false,
   value: 10,

files/en-us/web/javascript/reference/global_objects/proxy/proxy/getownpropertydescriptor/index.md

@@ -66,15 +66,19 @@ If the following invariants are violated, the proxy will throw a {{jsxref("TypeE
 The following code traps {{jsxref("Object.getOwnPropertyDescriptor()")}}.
 
 ```js
-const p = new Proxy({ a: 20}, {
-  getOwnPropertyDescriptor(target, prop) {
-    console.log(`called: ${prop}`);
-    return { configurable: true, enumerable: true, value: 10 };
-  },
-});
+const p = new Proxy(
+  { a: 20 },
+  {
+    getOwnPropertyDescriptor(target, prop) {
+      console.log(`called: ${prop}`);
+      return { configurable: true, enumerable: true, value: 10 };
+    },
+  }
+);
 
-console.log(Object.getOwnPropertyDescriptor(p, 'a').value); // "called: a"
-                                                            // 10
+console.log(Object.getOwnPropertyDescriptor(p, "a").value);
+// "called: a"
+// 10
 ```
 
 The following code violates an invariant.
@@ -88,7 +92,7 @@ const p = new Proxy(obj, {
   },
 });
 
-Object.getOwnPropertyDescriptor(p, 'a'); // TypeError is thrown
+Object.getOwnPropertyDescriptor(p, "a"); // TypeError is thrown
 ```
 
 ## Specifications

files/en-us/web/javascript/reference/global_objects/proxy/proxy/getprototypeof/index.md

@@ -69,14 +69,14 @@ const obj = {};
 const proto = {};
 const handler = {
   getPrototypeOf(target) {
-    console.log(target === obj);   // true
+    console.log(target === obj); // true
     console.log(this === handler); // true
     return proto;
   },
 };
 
 const p = new Proxy(obj, handler);
-console.log(Object.getPrototypeOf(p) === proto);    // true
+console.log(Object.getPrototypeOf(p) === proto); // true
 ```
 
 ### Five ways to trigger the getPrototypeOf trap
@@ -89,11 +89,11 @@ const p = new Proxy(obj, {
   },
 });
 console.log(
-  Object.getPrototypeOf(p) === Array.prototype,  // true
+  Object.getPrototypeOf(p) === Array.prototype, // true
   Reflect.getPrototypeOf(p) === Array.prototype, // true
-  p.__proto__ === Array.prototype,               // true
-  Array.prototype.isPrototypeOf(p),              // true
-  p instanceof Array,                            // true
+  p.__proto__ === Array.prototype, // true
+  Array.prototype.isPrototypeOf(p), // true
+  p instanceof Array // true
 );
 ```
 
@@ -103,8 +103,8 @@ console.log(
 const obj = {};
 const p = new Proxy(obj, {
   getPrototypeOf(target) {
-    return 'foo';
-  }
+    return "foo";
+  },
 });
 Object.getPrototypeOf(p); // TypeError: "foo" is not an object or null
 

files/en-us/web/javascript/reference/global_objects/proxy/proxy/has/index.md

@@ -70,15 +70,19 @@ If the following invariants are violated, the proxy will throw a
 The following code traps the {{jsxref("Operators/in", "in")}} operator.
 
 ```js
-const p = new Proxy({}, {
-  has(target, prop) {
-    console.log(`called: ${prop}`);
-    return true;
-  },
-});
+const p = new Proxy(
+  {},
+  {
+    has(target, prop) {
+      console.log(`called: ${prop}`);
+      return true;
+    },
+  }
+);
 
-console.log('a' in p); // "called: a"
-                       // true
+console.log("a" in p);
+// "called: a"
+// true
 ```
 
 The following code violates an invariant.
@@ -93,7 +97,7 @@ const p = new Proxy(obj, {
   },
 });
 
-'a' in p; // TypeError is thrown
+"a" in p; // TypeError is thrown
 ```
 
 ## Specifications

files/en-us/web/javascript/reference/global_objects/proxy/proxy/index.md

@@ -92,7 +92,7 @@ In this example the target has two properties, `notProxied` and
 ```js
 const target = {
   notProxied: "original value",
-  proxied: "original value"
+  proxied: "original value",
 };
 
 const handler = {
@@ -101,13 +101,13 @@ const handler = {
       return "replaced value";
     }
     return Reflect.get(...arguments);
-  }
+  },
 };
 
 const proxy = new Proxy(target, handler);
 
 console.log(proxy.notProxied); // "original value"
-console.log(proxy.proxied);    // "replaced value"
+console.log(proxy.proxied); // "replaced value"
 ```
 
 ## Specifications

files/en-us/web/javascript/reference/global_objects/proxy/proxy/isextensible/index.md

@@ -64,25 +64,32 @@ If the following invariants are violated, the proxy will throw a
 The following code traps {{jsxref("Object.isExtensible()")}}.
 
 ```js
-const p = new Proxy({}, {
-  isExtensible(target) {
-    console.log('called');
-    return true;
+const p = new Proxy(
+  {},
+  {
+    isExtensible(target) {
+      console.log("called");
+      return true;
+    },
   }
-});
+);
 
-console.log(Object.isExtensible(p)); // "called"
-                                     // true
+console.log(Object.isExtensible(p));
+// "called"
+// true
 ```
 
 The following code violates the invariant.
 
 ```js example-bad
-const p = new Proxy({}, {
-  isExtensible(target) {
-    return false;
+const p = new Proxy(
+  {},
+  {
+    isExtensible(target) {
+      return false;
+    },
   }
-});
+);
 
 Object.isExtensible(p); // TypeError is thrown
 ```

files/en-us/web/javascript/reference/global_objects/proxy/proxy/ownkeys/index.md

@@ -71,31 +71,35 @@ If the following invariants are violated, the proxy will throw a
 The following code traps {{jsxref("Object.getOwnPropertyNames()")}}.
 
 ```js
-const p = new Proxy({}, {
-  ownKeys(target) {
-    console.log('called');
-    return ['a', 'b', 'c'];
+const p = new Proxy(
+  {},
+  {
+    ownKeys(target) {
+      console.log("called");
+      return ["a", "b", "c"];
+    },
   }
-});
+);
 
-console.log(Object.getOwnPropertyNames(p)); // "called"
-                                            // [ 'a', 'b', 'c' ]
+console.log(Object.getOwnPropertyNames(p));
+// "called"
+// [ 'a', 'b', 'c' ]
 ```
 
 The following code violates an invariant.
 
 ```js example-bad
 const obj = {};
-Object.defineProperty(obj, 'a', {
+Object.defineProperty(obj, "a", {
   configurable: false,
   enumerable: true,
-  value: 10 }
-);
+  value: 10,
+});
 
 const p = new Proxy(obj, {
   ownKeys(target) {
     return [123, 12.5, true, false, undefined, null, {}, []];
-  }
+  },
 });
 
 console.log(Object.getOwnPropertyNames(p));

files/en-us/web/javascript/reference/global_objects/proxy/proxy/preventextensions/index.md

@@ -61,26 +61,33 @@ If the following invariants are violated, the proxy will throw a {{jsxref("TypeE
 The following code traps {{jsxref("Object.preventExtensions()")}}.
 
 ```js
-const p = new Proxy({}, {
-  preventExtensions(target) {
-    console.log('called');
-    Object.preventExtensions(target);
-    return true;
+const p = new Proxy(
+  {},
+  {
+    preventExtensions(target) {
+      console.log("called");
+      Object.preventExtensions(target);
+      return true;
+    },
   }
-});
+);
 
-console.log(Object.preventExtensions(p)); // "called"
-                                          // false
+console.log(Object.preventExtensions(p));
+// "called"
+// false
 ```
 
 The following code violates the invariant.
 
 ```js example-bad
-const p = new Proxy({}, {
-  preventExtensions(target) {
-    return true;
+const p = new Proxy(
+  {},
+  {
+    preventExtensions(target) {
+      return true;
+    },
   }
-});
+);
 
 Object.preventExtensions(p); // TypeError is thrown
 ```

files/en-us/web/javascript/reference/global_objects/proxy/proxy/set/index.md

@@ -92,19 +92,22 @@ If the following invariants are violated, the proxy will throw a
 The following code traps setting a property value.
 
 ```js
-const p = new Proxy({}, {
-  set(target, prop, value, receiver) {
-    target[prop] = value;
-    console.log(`property set: ${prop} = ${value}`);
-    return true;
+const p = new Proxy(
+  {},
+  {
+    set(target, prop, value, receiver) {
+      target[prop] = value;
+      console.log(`property set: ${prop} = ${value}`);
+      return true;
+    },
   }
-})
+);
 
-console.log('a' in p);  // false
+console.log("a" in p); // false
 
-p.a = 10;               // "property set: a = 10"
-console.log('a' in p);  // true
-console.log(p.a);       // 10
+p.a = 10; // "property set: a = 10"
+console.log("a" in p); // true
+console.log(p.a); // 10
 ```
 
 ## Specifications