| #!/usr/bin/env python3 | |
| """ | |
| Very simple HTTP server in python for logging requests | |
| Usage:: | |
| ./server.py [<port>] | |
| """ | |
| from http.server import BaseHTTPRequestHandler, HTTPServer | |
| import logging | |
| import cgi |
| <!doctype html> | |
| <html lang="en"> | |
| <head> | |
| <!-- Required meta tags --> | |
| <meta charset="utf-8"> | |
| <meta name="viewport" content="width=device-width, initial-scale=1"> | |
| <title>AES-GCM encrypt decrypt and download</title> | |
| </head> |
https://en.wikipedia.org/wiki/Spline_(mathematics)
For the elastic rulers being the model for the spline interpolation, one has that to the left of the left-most "knot" and to the right of the right-most "knot" the ruler can move freely and will therefore take the form of a straight line with q′′ = 0. As q′′ should be a continuous function of x, natural splines in addition to the n − 1 linear equations (15) should have
| "use strict"; | |
| //when use global variables,the for loop run 100x slow! | |
| const CHECK_LENGTH = 1E6, | |
| CHECK_POINT = Math.ceil(Math.sqrt(CHECK_LENGTH)); | |
| var test1 = _ => { | |
| let cn = new Array(CHECK_LENGTH); | |
| for (let j = 2; j < 1E3; j++) { |
| function test() { | |
| //very long string | |
| let s = new Array(1000 * 500).join(new Array(1000).join('x')); | |
| window.check = function() {}//closure | |
| let out = setTimeout(_ => { | |
| if (window.check) { | |
| //random index |
| async function test(){ | |
| let f = await fetch('https://icors.vercel.app/?http%3A%2F%2Fwww.12379.cn%2Fdata%2Falarm_list_all.html') | |
| let d = await f.json() | |
| console.log(d.alertData) | |
| for(let item of d.alertData){ | |
| //https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/String/includes | |
| if(item.headline.includes('孟津')){ | |
| console.log(item) |
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <meta name="viewport" content="width=device-width"> | |
| <title>smoothPolygon use turf</title> | |
| <style> | |
| canvas{ | |
| margin:20px; | |
| } |
| Call to putImageData took 41 milliseconds. | |
| Call to fillRect took 2019 milliseconds. |
| //numbers 2-23 | |
| var run = async _ => { | |
| let canvas = $("<canvas width=1000 height=800></canvas>")[0] | |
| $('body').empty().append(canvas) | |
| const ctx = canvas.getContext('2d'); | |
| const get_random = (a, b) => { | |
| return (b - a) * Math.random() + a; | |
| } |
| function performance_test(name, func, iterations=1E8){ | |
| console.time(name); | |
| for(var i = 0; i < iterations; i++ ){ | |
| func(); | |
| }; | |
| console.timeEnd(name) | |
| } | |
| performance_test('sin', _=>{Math.sin(Math.random())}) |