javascript - typescript 使用const 报Cannot redeclare block-scoped variable
高洛峰
高洛峰 2017-06-30 09:58:05
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Two files in the same directory a.ts b.ts

a.ts:

const a=1;

b.ts:

const a=2;

The two files have no dependencies, I really can’t figure it out

高洛峰
高洛峰

拥有18年软件开发和IT教学经验。曾任多家上市公司技术总监、架构师、项目经理、高级软件工程师等职务。 网络人气名人讲师,...

reply all(2)
黄舟

Because there is no import or export in your two files, so he thinks that your two files are global... and will naturally prompt this

淡淡烟草味

Because there is no closure in the file, each a is a global variable by default. You can use export to export a, then a becomes a variable in the closure.

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