Abdullah AlDwyish aldwyish

How FeaturesAt Works in MapboxGL JS

I'm going through the code execution of featuresAt in Mapbox GL JS. This is to take notes and understand how all of this works.

featuresat.html

Initiating the feature search based on the example on Mapbox GL API Docs...

map.on('click', function(e) {

There are three easy to make mistakes in go. I present them here in the way they are often found in the wild, not in the way that is easiest to understand.

All three of these mistakes have been made in Kubernetes code, getting past code review at least once each that I know of.

Loop variables are scoped outside the loop.

What do these lines do? Make predictions and then scroll down.

func print(pi *int) { fmt.Println(*pi) }

	#!/usr/bin/env python
	# Implementation of algorithm from http://stackoverflow.com/a/22640362/6029703
	import numpy as np
	import pylab

	def thresholding_algo(y, lag, threshold, influence):
	signals = np.zeros(len(y))
	filteredY = np.array(y)
	avgFilter = [0]*len(y)
	stdFilter = [0]*len(y)

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset='utf-8' />
	<title></title>
	<meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' />
	<script src='https://api.tiles.mapbox.com/mapbox-gl-js/v0.5.1/mapbox-gl.js'></script>
	<link href='https://api.tiles.mapbox.com/mapbox-gl-js/v0.5.1/mapbox-gl.css' rel='stylesheet' />
	<style>
	body { margin:0; padding:0; }

	package main

	import (
	"encoding/json"
	"fmt"
	"gopkg.in/mgo.v2"
	"gopkg.in/mgo.v2/bson"
	"log"
	)

	---
	- name: Create directory to put elixir in
	sudo: 'yes'
	shell: "mkdir -p /opt/elixir/v0.15.0"

	- name: Install unzip
	apt: name=unzip state=present update_cache=true

	- name: Unzip elixir release
	sudo: 'yes'

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8" />
	<title>Besier Curve</title>
	<style>
	circle {
	cursor: pointer;
	}

	# required: ffmpeg (e.g. from homebrew), terminal-notifier from https://github.com/alloy/terminal-notifier
	# you can schedule this with launchd to run e.g. weekly

	# Specify in seconds how long the script should record (default here is 1 hour).
	seconds=3600

	# Date format for the recording file name
	DATE=`date "+%d-%m-%y_%H-%M"`

	# start ffmpeg recording

	# Elixir v1.0
	defmodule Rules do
	defmacro __using__(_) do
	quote do
	import unquote(__MODULE__)
	@before_compile unquote(__MODULE__)
	@rules []
	end
	end

	# this forces dpkg not to call sync() after package extraction and speeds up install
	RUN echo "force-unsafe-io" > /etc/dpkg/dpkg.cfg.d/02apt-speedup
	# we don't need and apt cache in a container
	RUN echo "Acquire::http {No-Cache=True;};" > /etc/apt/apt.conf.d/no-cache