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Martin Xu martinx

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  • Shanghai, China
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@fideloper
fideloper / install_mysql.sh
Last active July 1, 2020 10:13
instal mysql5.7 non-interactive on ubuntu 14.04
#!/usr/bin/env bash
# This is assumed to be run as root or with sudo
export DEBIAN_FRONTEND=noninteractive
# Import MySQL 5.7 Key
# gpg: key 5072E1F5: public key "MySQL Release Engineering <mysql-build@oss.oracle.com>" imported
apt-key adv --keyserver ha.pool.sks-keyservers.net --recv-keys 5072E1F5
echo "deb http://repo.mysql.com/apt/ubuntu/ trusty mysql-5.7" | tee -a /etc/apt/sources.list.d/mysql.list
@kidpixo
kidpixo / jupyter_shortcuts.md
Last active July 1, 2024 05:40
Keyboard shortcuts for ipython notebook 3.1.0 / jupyter

Warning This is SEVERELY outdated, the current jupyter version is > 6.X, please refer to your current jupyter notebook installation!

Disclaimer : I just copied those shortcuts from Jupyter Menú > Help > Keyboard Shortcuts, I didn't wrote them myself.

Check your current shortcuts in your Help, shortcuts coule have been modified by extensions or your past self.

Toc

Keyboard shortcuts

@martinx
martinx / add_instance_methods.rb
Last active August 29, 2015 14:13 — forked from emrekutlu/add_instance_methods.rb
class Message
[:hello, :goodbye].each do |method_name|
define_method method_name do |arg|
"#{method_name} #{arg}"
end
end
end
#irb
Message.instance_methods false #=> [:hello, :goodbye]
@bllchmbrs
bllchmbrs / tfpdf.py
Last active December 29, 2021 14:10
TF IDF Explained in Python Along with Scikit-Learn Implementation
from __future__ import division
import string
import math
tokenize = lambda doc: doc.lower().split(" ")
document_0 = "China has a strong economy that is growing at a rapid pace. However politically it differs greatly from the US Economy."
document_1 = "At last, China seems serious about confronting an endemic problem: domestic violence and corruption."
document_2 = "Japan's prime minister, Shinzo Abe, is working towards healing the economic turmoil in his own country for his view on the future of his people."
document_3 = "Vladimir Putin is working hard to fix the economy in Russia as the Ruble has tumbled."
@LeCoupa
LeCoupa / bash-cheatsheet.sh
Last active July 16, 2024 17:25
Bash CheatSheet for UNIX Systems --> UPDATED VERSION --> https://github.com/LeCoupa/awesome-cheatsheets
#!/bin/bash
#####################################################
# Name: Bash CheatSheet for Mac OSX
#
# A little overlook of the Bash basics
#
# Usage:
#
# Author: J. Le Coupanec
# Date: 2014/11/04
@pithyless
pithyless / integer.rb
Created March 24, 2014 10:50
Ruby Integer::MAX and Integer::MIN
class Integer
N_BYTES = [42].pack('i').size
N_BITS = N_BYTES * 16
MAX = 2 ** (N_BITS - 2) - 1
MIN = -MAX - 1
end
p Integer::MAX #=> 4611686018427387903
p Integer::MAX.class #=> Fixnum
p (Integer::MAX + 1).class #=> Bignum
@hozaka
hozaka / float-label-pattern.html
Last active August 29, 2015 13:56
A float label implement with validation by pure css
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf8">
<title>Float Label Pattern</title>
<link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css">
<style type="text/css" media="screen">
.row {
/*position: relative;*/
padding-top: 24px;
@justinweiss
justinweiss / filterable.rb
Last active January 11, 2024 07:28
Filterable
# Call scopes directly from your URL params:
#
# @products = Product.filter(params.slice(:status, :location, :starts_with))
module Filterable
extend ActiveSupport::Concern
module ClassMethods
# Call the class methods with names based on the keys in <tt>filtering_params</tt>
# with their associated values. For example, "{ status: 'delayed' }" would call
@Kenrick-Zhou
Kenrick-Zhou / devise.zh-CN.yml
Last active November 23, 2019 11:41 — forked from acenqiu/devise.zh-CN.yml
rails devise 3.5.2 I18n translations zh-CN
# Chinese (China) translations for Devise(3.5.2)
# by Kenrick-Zhou (https://github.com/Kenrick-Zhou)
# https://gist.github.com/Kenrick-Zhou/7909822
zh-CN:
devise:
confirmations:
confirmed: "您的帐号已经确认，您现在已登录。"
send_instructions: "几分钟后，您将收到确认帐号的电子邮件。"
send_paranoid_instructions: "如果您的邮箱存在于我们的数据库中，您将收到一封确认账号的邮件。"
@plusor
plusor / alias vs. alias_method.md
Created July 29, 2013 14:21
alias 和 alias_method 区别 ruby
alias 和 alias_method 区别 ruby

1

class User

  def full_name