From 96131573392fdb8d99acd1fb4edf94d994b05fb5 Mon Sep 17 00:00:00 2001
From: rrogowski <rrogo112@gmail.com>
Date: Tue, 26 Mar 2019 10:08:44 -0400
Subject: [PATCH] allow conditional expressions

---
 src/rules/noVoidExpressionRule.ts                  | 4 ++++
 test/rules/no-void-expression/default/test.ts.lint | 2 ++
 2 files changed, 6 insertions(+)

diff --git a/src/rules/noVoidExpressionRule.ts b/src/rules/noVoidExpressionRule.ts
index 798924dd4b6..ff1b0f87752 100644
--- a/src/rules/noVoidExpressionRule.ts
+++ b/src/rules/noVoidExpressionRule.ts
@@ -104,6 +104,10 @@ function walk(ctx: Lint.WalkContext<Options>, checker: ts.TypeChecker): void {
             // Something like "x && console.log(x)".
             case ts.SyntaxKind.BinaryExpression:
                 return isParentAllowedVoid(node.parent);
+
+            // Something like "!!cond ? console.log(true) : console.log(false)"
+            case ts.SyntaxKind.ConditionalExpression:
+                return true;
             default:
                 return false;
         }
diff --git a/test/rules/no-void-expression/default/test.ts.lint b/test/rules/no-void-expression/default/test.ts.lint
index 663fe260c75..1322aff7aee 100644
--- a/test/rules/no-void-expression/default/test.ts.lint
+++ b/test/rules/no-void-expression/default/test.ts.lint
@@ -24,4 +24,6 @@ declare function doIt(): void;
 declare function doAsync(): Promise<void>;
 declare function print(strs: TemplateStringsArray): void;
 
+!!data ? console.info(message, data) : console.info(message);
+
 [0]: Expression has type `void`. Put it on its own line as a statement.