import 8.3.0 source

[pve-eslint.git] / eslint / docs / rules / no-unused-expressions.md

diff --git a/eslint/docs/rules/no-unused-expressions.md b/eslint/docs/rules/no-unused-expressions.md
index 1557725a19301089eab77f8c33f39bde084fdbfe..89cfb334e802cec17d9c7758288aca6d5e9e91e5 100644 (file)
--- a/eslint/docs/rules/no-unused-expressions.md
+++ b/eslint/docs/rules/no-unused-expressions.md
@@ -62,16 +62,6 @@ injectGlobal`body{ color: red; }`
 
 ```
 
-Note that one or more string expression statements (with or without semi-colons) will only be considered as unused if they are not in the beginning of a script, module, or function (alone and uninterrupted by other statements). Otherwise, they will be treated as part of a "directive prologue", a section potentially usable by JavaScript engines. This includes "strict mode" directives.
-
-```js
-"use strict";
-"use asm"
-"use stricter";
-"use babel"
-"any other strings like this in the prologue";
-```
-
 Examples of **correct** code for the default `{ "allowShortCircuit": false, "allowTernary": false }` options:
 
 ```js
@@ -96,6 +86,50 @@ delete a.b
 void a
 ```
 
+Note that one or more string expression statements (with or without semi-colons) will only be considered as unused if they are not in the beginning of a script, module, or function (alone and uninterrupted by other statements). Otherwise, they will be treated as part of a "directive prologue", a section potentially usable by JavaScript engines. This includes "strict mode" directives.
+
+Examples of **correct** code for this rule in regard to directives:
+
+```js
+/*eslint no-unused-expressions: "error"*/
+
+"use strict";
+"use asm"
+"use stricter";
+"use babel"
+"any other strings like this in the directive prologue";
+"this is still the directive prologue";
+
+function foo() {
+    "bar";
+}
+
+class Foo {
+    someMethod() {
+        "use strict";
+    }
+}
+```
+
+Examples of **incorrect** code for this rule in regard to directives:
+
+```js
+/*eslint no-unused-expressions: "error"*/
+
+doSomething();
+"use strict"; // this isn't in a directive prologue, because there is a non-directive statement before it
+
+function foo() {
+    "bar" + 1;
+}
+
+class Foo {
+    static {
+        "use strict"; // class static blocks do not have directive prologues
+    }
+}
+```
+
 ### allowShortCircuit
 
 Examples of **incorrect** code for the `{ "allowShortCircuit": true }` option: