es6转换问题

[yzend]

Describe the bug 源项目是 微信，再编译后转 es5 Set的解构有问题 以及 array的entries() 迭代器转换问题

To Reproduce Steps to reproduce the behavior: let a = [1,2,3] a = [...new Set(a)] console.log(a, 'a') // [] a为空数组

for (const [index, ele] of a.entries()) { console.log(index, ele) // 不触发 console }

Expected behavior 预期期望出现 [1,2,3]

迭代器出现 0,1 1,2 2,3 myapp.zip

Screenshots If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: [e.g. iOS]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]

Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Additional context Add any other context about the problem here.

[yzend]

https://stackoverflow.com/questions/33464504/using-spread-syntax-and-new-set-with-typescript

在typescript 进行编译的时候 需要使用新的 迭代器协议 function tsTransform() { const tsCompilerOptions = { downlevelIteration: true } } 是否考虑增加 默认降级迭代器协议