biaocy

var count = document.querySelectorAll('#currencies-all > tbody > tr').length;
var data = document.querySelectorAll('#currencies-all > tbody > tr > td:nth-last-child(-n+3)');
var h1 = {'up': 0, 'down': 0, 'zero': 0};	//1 hour change
var h24 = {'up': 0, 'down': 0, 'zero': 0};	//24 hours change
var d7 = {'up': 0, 'down': 0, 'zero': 0};	//7 days change

for (let i = 0; i < data.length; i+=3) {
	let a = Number(data[i].dataset.usd), b = Number(data[i+1].dataset.usd), c = Number(data[i+2].dataset.usd);
	if (a > 0) h1.up++;
	else if (a < 0) h1.down++;

biaocy

Blog about "How Spring Mvc Work"

1.how request url match? Hint: With namespace <mvc:annotation-driven />, it's use of RequestMappingHandleMapping.

A.With "WebMVC" enabled, it will register a couple of HandleMapping and HandleAdapter
当 "WebMVC" enabled 时，Spring 默认会注册一些 HandleMapping 和 HandleAdapter
By default:
	1.RequestMappingHandleMapping
	2.RequestMappingHandlerAdapter

biaocy

#!/bin/bash

#zimuzu video id
vid="$1"
#season: S01 etc
season="$2"
#output file name
fname="${3-$vid}.$season.`date +%Y%m%d`.json"

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This has been moved into the official Chef docs:

https://docs.chef.io/custom_resources_notes.html

12.5 style custom resources

This is by far the most recommended way of writing resources for all users. There are two gotchas which we're working through:

1. For helper functions that you used to write in your provider code or used to mixin to your provider code, you have to use an action_class do ... end block.

biaocy

function getQueryObj(url) {
  let re = /[?&]+(\w+)(?:=([\w%\.]*))*/g;
  let results, ret = {};
  while ((results = re.exec(url)) !== null) {
    let [m, k, v] = results; // array destructuring
    ret[k] = v;
  }
  return ret;
}

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NERDTree

o.......Open files, directories and bookmarks....................|NERDTree-o|
go......Open selected file, but leave cursor in the NERDTree.....|NERDTree-go|
t.......Open selected node/bookmark in a new tab.................|NERDTree-t|
T.......Same as 't' but keep the focus on the current tab........|NERDTree-T|
i.......Open selected file in a split window.....................|NERDTree-i|
gi......Same as i, but leave the cursor on the NERDTree..........|NERDTree-gi|
s.......Open selected file in a new vsplit.......................|NERDTree-s|
gs......Same as s, but leave the cursor on the NERDTree..........|NERDTree-gs|

O.......Recursively open the selected directory..................|NERDTree-O|

biaocy

#!/bin/bash
# fail fast
set -e

# Symbolic file
LINK_CONF="config.json"

if [ ! -h "$LINK_CONF" ]
then
	echo "'$LINK_CONF' is not a symbolic file or not exist"

biaocy

#!/bin/sh -e

OS=${OS:-`uname`}

if [ "$OS" = 'Darwin' ]; then
  get_touch_time() {
    date -r ${unixtime} +'%Y%m%d%H%M.%S'
  }
else
  # default Linux

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知识点

语言

Java

基础

• 面向对象特性：封装、继承、多态
• 集合: List、Set、Map
• 异常:
  • Checked Exception
  • Unchecked Exception: RuntimeException, Error, and their subclasses

biaocy

sudo apt install libboost-dev libboost-system-dev libboost-filesystem-dev\
 libboost-regex-dev libboost-locale-dev libgtest-dev libgoogle-glog-dev\
 libibus-1.0-dev libnotify-dev libleveldb-dev libmarisa-dev libopencc-dev\
 libyaml-cpp-dev cmake capnproto