Redefinition of Promise

2018-07-02 16:47:45

Promise is now a global reserved word in es6 and linters throw a error. So what are the pitfalls of doing this

var Promise = require("bluebird");

or should i do

var BluebirdPromise = require("bluebird");

Looks like there isn't a problem to redeclaring promise as long as it's not global. But second one is a better approach

Many of us do that. There's no problem. You're just using a faster implementation, that's all. But note that you may use more and more promises given by various libraries, so this is a very limited replacement (there are discussions in the node world about ways to define a library as a global promise provider). – Denys Séguret

只需将这些行放在.jshintrc

{
  "undef": true,
  "unused": true,
  "predef": [ "-Promise" ]
}

链接地址: http://www.djcxy.com/p/91140.html

上一篇: JS堆建议的内存大小

下一篇: 承诺的重新定义