92hackers

[global]
timeout = 60
index-url = http://pypi.douban.com/simple

[install]
trusted-host=pypi.douban.com

92hackers

import join from 'lodash/join'  // es6, most useful when used with webpack.

const isArray = require('lodash/isArray')  // node.js style.

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const isArray = arr => Object.prototype.toString.call(arr) === '[object Array]'
const isObject = obj => Object.prototype.toString.call(obj) === '[object Object]'

/**
 * Deep copy properties from src, and return cloned object
 * @param {Object} src source object to clone from
 */
const deepClone = src => {
  const dest = {}
  const copy = (src, dest) => {

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class File(object):
    def __init__(self, file_name, method):
        self.file_obj = open(file_name, method)
    def __enter__(self):
        return self.file_obj
    def __exit__(self, type, value, traceback):
        self.file_obj.close()

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#! /usr/bin/env bash

# sudo passwd root: set password for root user
sudo passwd root  # for root user
sudo passwd $USER  # for current logged in user.

# Add a new user
sudo adduser <qm>

# add epel yum repository

92hackers

Objects can be created with computed keys, so es6.ruanyifeng.com is not enough.

const obj = {
  [variable]: value,
}

Reduce, the simplest way to accummulate datas. reduce set first item as initial value default.

const total = ['age', 'name', 'favourite'].map(key => dataLists.reduce((sum, data) => ({

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'C:\Users\Administrator/Desktop/7-42.pdf'  is wrong.
should be 'C:\\Users\\Administrator/Desktop/7-42.pdf'

because \ is preserved to escape character.

const str = 'C:\\Users\\Administrator/Desktop/7-42.pdf'
str.replace(/\//g, '\\')
// => 'C:\\Users\\Administrator\\Desktop\\7-42.pdf'

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// 1, Object.is

Object.is('hello', 'hello')
// => true

Object.is(+0, -0)
// => false

Object.is(NaN, NaN)
// => true

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// regex 分组的一个好例子
const pattern = /^(0*([1-9]\d{1,3})\ +)?([1-9]\d{7,})$/
const str = '086 18118771840'

pattern.exec(str)
/* =>  [ '086 18118771840', '086 ', '86', '18118771840' ]
 *  这里，用正则来匹配想要的字段，加上括号，即可自动分组，
 *  应用： 根据条件提取字段，分组甚至能够在正则表达式里面直接使用。
 */

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[
  { "key": "ctrl+`", "command": "workbench.action.focusActiveEditorGroup", "when": "terminalFocus" },
  { "key": "ctrl+`", "command": "workbench.action.terminal.focus", "when": "!terminalFocus" }
]

// Paste above code into   F1: Open KeyboardShortcuts preferences.  yourself keybinds.json