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call2p

v0.0.4

Published

convert result to promise with call a function.

Downloads

13

Readme

call2p

将函数执行结果装换成 promise 形式。

安装

$ npm install call2p

API

call2p(executor)

  • {Function} executor
const call2p = require('call2p');
const fs = require('fs');

// 执行一个函数,结使用 Promise 包装其果,该函数
// 只接受的参数 cb 是一个符合 error-first 规范的回调函数
call2p(function(cb) {
  fs.readFile(__filename, cb);
}).then(function(content) {
  console.log(content.toString('utf8'));
}).catch(function(err) {
  console.log(err.stack || err.message || err);
});

call2p.wrap(handle)

  • {Function} handle
const call2p = require('call2p');
const fs = require('fs');

// 将函数包装成新的函数,新函数内部使用 call2p 执行就函数,所以执行新函数会返回一个 Promise 实例;
// 该函数接受的最后一个参数 cb 是一个符合 error-first 规范的回调函数
const readFile = call2cb.wrap(function(file, cb) {
  fs.readFile(file, cb);
});

readFile(__filename).then(function(content) {
  console.log(content.toString('utf8'));
}).catch(function(err) {
  console.log(err.stack || err.message || err);
});

Todo

  • [ ] 添加测试用例
  • [ ] 重写开发文档

License

MIT © 2018, Maofeng Zhang