feature(@putout/plugin-simplify-ternary) add support of duplicates

Author: coderaiser

packages/plugin-simplify-ternary/README.md

@@ -27,12 +27,16 @@ npm i @putout/plugin-simplify-ternary -D
 
 ```js
 module.exports = fs.copyFileSync ? fs.copyFileSync : copyFileSync;
+
+const nodeTypes = Array.isArray(matcher.nodeType) ? matcher.nodeType : matcher.nodeType;
 ```
 
 ## ✅ Correct code Example
 
 ```js
 module.exports = fs.copyFileSync || copyFileSync;
+
+const nodeTypes = matcher.nodeType;
 ```
 
 ## License

packages/plugin-simplify-ternary/lib/simplify-ternary.js

@@ -4,5 +4,6 @@ module.exports.report = () => 'Unnecessary use of conditional expression for def
 
 module.exports.replace = () => ({
     '__a ? __a : __b': '__a || __b',
+    '__a ? __b : __b ? __c : __d': '__b ? __c : __d',
 });
 

packages/plugin-simplify-ternary/test/fixture/duplicate-fix.js

@@ -0,0 +1 @@
+const nodeTypes = matcher.nodeType ? [matcher.nodeType] : ['Node']

packages/plugin-simplify-ternary/test/fixture/duplicate.js

@@ -0,0 +1,5 @@
+const nodeTypes = Array.isArray(matcher.nodeType)
+    ? matcher.nodeType
+    : matcher.nodeType
+    ? [matcher.nodeType]
+    : ['Node']

packages/plugin-simplify-ternary/test/simplify-ternary.js

@@ -19,6 +19,11 @@ test('plugin-simplify-ternary: transform', (t) => {
     t.end();
 });
 
+test('plugin-simplify-ternary: transform: duplicate', (t) => {
+    t.transform('duplicate');
+    t.end();
+});
+
 test('plugin-simplify-ternary: no: transform: different test and consequent', (t) => {
     t.noTransform('diff');
     t.end();