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{
  "workbench.colorTheme": "Gruvbox Light (Hard)",
  "files.trimTrailingWhitespace": true,
  "editor.renderWhitespace": "all",
  "[html]": {
    "editor.defaultFormatter": "vscode.html-language-features"
  },
  "[jsonc]": {
    "editor.defaultFormatter": "esbenp.prettier-vscode"
  },

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#!/usr/bin/env python

import time
import boto
import boto.ec2.elb
import boto.utils

from flask.ext.script import Manager

from closeio.main import setup_app

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$: (Dollar Colon) is basically a shorthand version of $LOAD_PATH. $: contains an array of paths that your script will search through when using require.
$0 (Dollar Zero) contains the name of the ruby program being run. This is typically the script name.
$* (Dollar Splat) is basically shorthand for ARGV. $* contains the command line arguments that were passed to the script.
$? (Dollar Question Mark) returns the exit status of the last child process to finish.
$$ (Dollar Dollar) returns the process number of the program currently being ran.
$~ (Dollar Tilde) contains the MatchData from the previous successful pattern match.
$1, $2, $3, $4 etc represent the content of the previous successful pattern match.
$& (Dollar Ampersand) contains the matched string from the previous successful pattern match.
$+ (Dollar Plus) contains the last match from the previous successful pattern match.
$` (Dollar Backtick) contains the string before the actual matched string of the previous successful pattern match.

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What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Element

Box metrics

• elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent
• elem.clientLeft, elem.clientTop, elem.clientWidth, elem.clientHeight
• elem.getClientRects(), elem.getBoundingClientRect()

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// encode(decode) html text into html entity
var decodeHtmlEntity = function(str) {
  return str.replace(/&#(\d+);/g, function(match, dec) {
    return String.fromCharCode(dec);
  });
};

var encodeHtmlEntity = function(str) {
  var buf = [];
  for (var i=str.length-1;i>=0;i--) {

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#!/bin/bash
echo "*****************************************"
echo " Based on information from Google"
echo " http://dev.chromium.org/spdy/spdy-best-practices"
echo "*****************************************"
sudo su
yum –y update
echo "*****************************************"
echo " Changing initcwnd and initrwnd"
echo " Step 1: check route settings."

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var mongoObjectId = function () {
    var timestamp = (new Date().getTime() / 1000 | 0).toString(16);
    return timestamp + 'xxxxxxxxxxxxxxxx'.replace(/[x]/g, function() {
        return (Math.random() * 16 | 0).toString(16);
    }).toLowerCase();
};

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# Access number
cat production.log | grep "^Processing" | wc | awk '{print $1}'

# Each IP access number
cat production.log | grep “^Processing” | awk ‘{print $4}’ | uniq -c 

# Independent IP number
cat production.log | grep "^Processing" | awk '{print $4}' | uniq | wc | awk '{print $1}'
cat production.log | grep “^Processing” | awk ‘{print $4}’ | uniq | wc -l 

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pragma solidity ^0.4.14;

library Pairing {
	struct G1Point {
		uint X;
		uint Y;
	}
	// Encoding of field elements is: X[0] * z + X[1]
	struct G2Point {
		uint[2] X;

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https://stackoverflow.com/questions/40509083/vim-split-one-file-into-multiple-files-based-on-row-count

up vote
8
down vote
accepted
First, you define a control variable:

:let i = 1
Then, you write lines 1 to 99 (inclusive) to a file named after the current value of the control variable, cut those line, and increment the control variable;