Ryan Smith ryasmi

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Engineering Manager at LP.Helping people do something they love because a lack of passion has a lack of impact.

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ryasmi /_setGlobalLogLevel.md

Last activeDecember 10, 2020 18:13

A function to set the global log level in Node/Browser.

In PM2 you can use the PM2time option to add timestamps to logs. In a Lambda, it automatically adds the timestamp to CloudWatch. I think the log level is also shown in CloudWatch. Ideally PM2 would output the level of the log too.

ryasmi /testRunner.js

CreatedAugust 20, 2018 11:40

Starting a potential test runner that doesn't provide an opinionated assertion library.

	createRunner=()=>{
	constbeforeAlls=[];
	constafterAlls=[];
	constbeforeEaches=[];
	constafterEaches=[];
	consttests=[];

	consttest=(description,process)=>{
	tests.push({
	description,

ryasmi /code-habit-const-functions-1.js

Last activeAugust 7, 2018 16:10

Code Habit - Const Functions

	// Preventing hoisting. We're used to reading top to bottom, so this can be quite confusing.
	constresult=add(1,2);

	functionadd(x,y){
	returnx+y;
	};

	console.log(result);

ryasmi /js-mushroom-episode-4-typescript.ts

Last activeJuly 17, 2018 14:24

	import*aslodashfrom'lodash';
	import*asmomentfrom'moment';

	// tslint:disable-next-line:no-class
	classA{
	publicconstructor(){return;}
	}

	interfaceB{
	readonlyc:number;

ryasmi /js-mushroom-episode-3-servers.md

Last activeMarch 23, 2018 16:55

JS Mushroom Episode 3 - Servers (2018-03-23)

First of all, make sure you have Node installed on your computer, I'd recommend using NVM. Then create a new folder and make a "index.js" file with the following contents.

consthttp=require('http');constserver=http.createServer((request,response)=>{response.end('hello');});server.listen(1337,()=>{

ryasmi /async-render-1.js

CreatedMarch 3, 2018 14:19

	app=async({count,fraction})=>{
	constseconds=Math.floor(count/fraction);
	constdiv=document.createElement('div');
	constspan=document.createElement('span');
	span.innerText=`${seconds}.${count%fraction}`;
	div.style.color='white'
	div.appendChild(span);
	returndiv;
	};
	client=()=>{

ryasmi /js-mushroom-episode-1-array-functions.js

Last activeFebruary 23, 2018 15:44

JS Mushroom Episode 1 - Array Functions (2018-02-09)

	// Using forEach.
	[1,2,3].forEach((item,index,items)=>{
	console.log('item',item);// Logs "1" for the first item, "2" for the second item, and "3" for the third item.
	console.log('index',index);// Logs "0" for the first item, "1" for the second item, and "2" for the third item.
	console.log('items',items);// Logs "[1,2,3]" to the console for every item.
	});

	// Using map to add one to each item in an array.
	constplusOneItems=[1,2,3].map((item,index,items)=>{
	returnitem+1;

ryasmi /js-mushroom-episode-2-promises.js

Last activeFebruary 23, 2018 15:44

JS Mushroom Episode 2 - Promises (2018-02-23)

	// Using resolved promises with the .then callback.
	Promise.resolve('hello world').then((message)=>{
	console.log(message);// Logs "hello world" in the console.
	});

	// Using rejected promises with the .catch callback.
	Promise.reject('error message').catch((err)=>{
	console.error(err);// Logs "error message" in the console.
	});

ryasmi /renameAll.sh

CreatedFebruary 23, 2018 11:10

Script to rename all files recursively in a directory on a Mac.

forfilein$(find src -name'*.js');do mv"$file""${file%.js}.ts";done

ryasmi /iriRegex.js

Last activeJanuary 7, 2018 21:51

	escapedChar=(char)=>{
	return`\\${char}`;
	}

	normChars=`w_~!$&'()*+,;=:-`.split('').map(escapedChar).join('');
	otherChars='\\u00A0-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF\\uFFEF-\\uFFFD';
	allChars=`${normChars}${otherChars}`;
	extChars=`(?:[${allChars}]\|(?:\\%[a-f0-9][a-f0-9]))`;

	capturePattern=(pattern)=>{

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Ryan Smith ryasmi