Microsoft/TypeScript

Middle operand in comma operator list not properly checked for side-effect-freeness

开放

#33,646 创建于 2019年9月27日

 (0 条评论) (0 个反应) (0 位负责人)TypeScript (13,395 个派生)batch import
BugDomain: Error MessagesHelp Wanted

仓库指标

星标
 (108,860 个星标)
PR 合并指标
 (PR 指标待抓取)

描述

TypeScript Version: master at f304b81fa54285f Search Terms: comma side effects

Code

declare const obj: any;
console.log(`${JSON.stringify(obj), undefined, 2}`);

Expected behavior: error TS2695: Left side of comma operator is unused and has no side effects.

Actual behavior: No errors

Playground Link: http://www.typescriptlang.org/play/#code/CYUwxgNghgTiAEYD2A7AzgF3kgRgKwC54oUBPAbgChl0kIQA6CJAcwAoADAEgG8ApAMoB5AHINMMAJYoWkgGak2uPAEoANPACuKUHOkhgGgEwBfDiqpA

Related Issues: #10814

贡献者指南