Today I Learned (August 11)

Today I Learned...

JavaScript

keyUp vs keyDown -> For keyUp it will only fire when the user lifts a finger from the key
keyDown will fire right after the user presses on the key
for the above events you can access what key was pressed with event.key
the function Confirm(string) returns a boolean
best practice for code formatting in js: querySelectors at the top, eventListeners at the bottom, function declarations in between
confirm(“text”) can be called in JS to open up a confirmation prompt with the text passed
createRange() adds functionality to the html element which its called on, typically in the document

HTML/CSS

you can use align-items: centre to centre along horizontal axis
event.target - The most specific element that was clicked
event.target.closest - The closest element listening for the click i.e the element one level higher than event.target
you can use flex: 1; inside child element of display: flex; to make it take up the entire width of the page

APIs

install express with with node package manager (NPM): https://expressjs.com/
in order to bring in a library into your JS file: const express = require(“express) --> this is a function
use const app = express() to enable the express functionality
http verbs required in the code (RESTful architecture):
- GET - its gets some data, retrieves info
- POST - creates new data
- PUT/PATCH - update information that’s already stored
- DELETE - delete stored data/existing information
- HEAD request - is the connection okay?
REQUEST vs RESPONSE: requests from the user/client specifically, while response is what the API server sends back after it preforms work on those requests
POST requests manipulate data
the function app.use(express.json) will give your express server the ability to read raw json files

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