weberliu’s gists

weberliu / format-date.js

Last active September 5, 2023 22:26

JS 片段

	const today = new Date().toJSON().slice(0, 10).replace(/-/g, '')

	// 对象数组除重
	arr.filter((item, index) => arr.findIndex((i) => item.id === i.id) === index)

	const combine = (arr) => {
	let result = []
	let go = (currentArr) => {
	if (currentArr.length === arr.length) {
	result.push(currentArr)

weberliu / hosts

Created August 16, 2023 02:04 — forked from consti/hosts

/etc/hosts to block shock sites etc.

	# This hosts file is brought to you by Dan Pollock and can be found at
	# http://someonewhocares.org/hosts/
	# You are free to copy and distribute this file for non-commercial uses,
	# as long the original URL and attribution is included.

	#<localhost>
	127.0.0.1 localhost
	127.0.0.1 localhost.localdomain
	255.255.255.255 broadcasthost
	::1 localhost

weberliu / standardDeviation.js

Last active July 7, 2020 08:35

	/**
	* 返回数组数组的标准偏差。
	*
	* 使用 Array.reduce() 来计算均值，方差已经值的方差之和，方差的值，然后确定标准偏差。
	* 您可以省略第二个参数来获取样本标准偏差，或将其设置为 true 以获得总体标准偏差。
	*/
	const standardDeviation = (arr, usePopulation = false) => {
	const mean = arr.reduce((acc, val) => acc + val, 0) / arr.length;
	return Math.sqrt(
	arr.reduce((acc, val) => acc.concat((val - mean) ** 2), []).reduce((acc, val) => acc + val, 0) /

weberliu / tfidf.py

Created June 30, 2020 08:14

	#!/usr/bin/python
	# coding=utf-8
	# TF-IDF提取文本关键词
	# http://scikit-learn.org/stable/modules/feature_extraction.html#tfidf-term-weighting

	import sys
	import os
	from config_ch import *
	import chardet
	import numpy as np

weberliu / centos-ss.sh

Last active June 30, 2020 08:11

	#!/bin/bash
	# curl "https://gist.github.com/weberliu/c3e12e4c09f27c9ef3363314f2401859/centos-ss" \| /bin/sh

	####################################
	install_home="/etc/shadowsocks/" # 安装目录
	port=30443; # 端口
	password="ladders" # 密码
	encrypt="chacha20-ietf-poly1305" # 加密方式
	####################################

weberliu / nunjucks.js

Created March 25, 2018 03:02

Nunjucks for koa2

	/*
	USAGE:
	import njk from './nunjucks';
	// Templating - Must be used before any router
	app.use(njk(path.join(__dirname, 'views'), {
	extname: '.njk',
	noCache: process.env.NODE_ENV !== 'production',
	throwOnUndefined: true,
	filters: {
	json: function (str) {

weberliu / dialog.js

Created March 16, 2018 02:51

wxapp dialog

	import Component from '../component'

	export default {
	/**
	* 默认参数
	*/
	setDefaults () {
	return {
	title: undefined,
	content: undefined,

weberliu / arraydiff.js

Created March 10, 2018 04:06

Find the difference of two arrays.

weberliu / drawimage.js

Created March 7, 2018 08:27

It's a bit more complicated to get a cover functionality, though here here is one solution for this:

	/**
	* https://stackoverflow.com/questions/21961839/simulation-background-size-cover-in-canvas/21961894#21961894
	*
	* By Ken Fyrstenberg Nilsen
	*
	* drawImageProp(context, image [, x, y, width, height [,offsetX, offsetY]])
	*
	* If image and context are only arguments rectangle will equal canvas
	*/
	function drawImageProp (ctx, img, x, y, w, h, offsetX, offsetY) {

weberliu / draw multiple lines text on canvas

Created January 25, 2018 02:04 — forked from JimmyJune/draw multiple lines text on canvas

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