emmanuelnk

// A SO answer to https://stackoverflow.com/questions/286141/remove-blank-attributes-from-an-object-in-javascript
// based off the recursive cleanEmpty function by @chickens. 
// This one can also handle Date objects correctly 
// and has a defaults list for values you want stripped.

const cleanEmpty = function(obj, defaults = [undefined, null, NaN, '']) {
  if (defaults.includes(obj)) return

  if (Array.isArray(obj))
    return obj

emmanuelnk

Here's an example of how to debug Mocha v4 if it hangs.

Ensure you're using a Node.js 8 or newer (or any version with async_hooks support).

If you run your test, you'll notice it hangs:

$ mocha test.js

emmanuelnk

Eric Elliott's "Master the JavaScript Interview" Series

A collection of links to the "Master the JavaScript Interview" series of medium stories by Eric Elliott.

Not part of the series but a good grounding.

• The Two Pillars of JavaScript - Part 1
• The Two Pillars of JavaScript - Part 2
• 10 Interview Questions Every JavaScript Developer Should Know

Master the JavaScript Interview

emmanuelnk

Eric Elliott's "Composing Software" Series

A collection of links to the excellent "Composing Software" series of medium stories by Eric Elliott.

Edit: I see that each post in the series now has index, previous and next links. However, they don't follow a linear flow through all the articles with some pointing back to previous posts effectively locking you in a loop.

• The Rise and Fall and Rise of Functional Programming
• Why Learn Functional Programming in JavaScript?
• A Functional Programmer’s Introduction to JavaScript
• [Higher Order Functions](https://medium.com/javascript-scene/higher-order-functions-com

emmanuelnk

npm v3.10 - ◾

If you are learning npm then i would suggest to go for yarn, dont waste your time in learning npm

⚠️ This gist is outdated, but most of the commands are still relevant.

Update npm itself

npm install -g npm
# Downgrade to a specific version

emmanuelnk

# start nodeenv virtual env if it exists
# for whenever you open integrated terminal in vscode
if [ -d ".nenv" ]; then
  . ".nenv/bin/activate"
fi

emmanuelnk

docker run -p 8000:8000 amazon/dynamodb-local -jar DynamoDBLocal.jar -sharedDb

emmanuelnk

for i in $( ls | grep [A-Z] ); do mv -i $i `echo $i | tr 'A-Z' 'a-z'`; done

emmanuelnk

# Export the vars in .env into your shell:
export $(egrep -v '^#' .env | xargs)

emmanuelnk

# ./my_script.sh --arg1 value1 --arg2 value2 --arg3 value3
# ./my_script.sh -a value1 -b value2 -c value3

#!/usr/bin/env bash
while [[ "$#" -gt 0 ]]; do case $1 in
  -a|--arg1) var1="$2"; shift;;
  -b|--arg2) var2="$2"; shift;;
  -c|--arg3) var3="$2"; shift;;
  *) echo "Unknown parameter passed: $1"; exit 1;;
esac; shift; done