Neoh TP liang799

this

this is confusing, so I condesed what I have learned from MDN and Yehuda's Blog into a cheatsheet

Simple functions

function hello(thing) {
  console.log("Hello " + thing);
}

// this:

Communication for Project Effectiveness CA2 Briefing

Background Info

Based on the content, the tech written in CA1, we need to present the contents of the tech in CA2. Presentation assessment.

Important Info

Read carefully

Juniors and their parents: they are people who are interested in Career in STEM --> how it can be applied
Don't focus on your diploma --> focus on stem

Section A

MCQ

d (correct)
c (correct)
a (wrong Ans:b)
d (wrong Ans:c)
c (correct)
d (correct)
? (Ans: D)
d (wrong Ans:a)

Keys

Primary Key

serve to uniquely identify a row in the table
build an index on Primary key to facilitate fast search and retreival

Foreign Key

a key that is used to link 2 tables together
table containing foreign key -> child table
table containing primary key -> referenced or parent table

Referential integrity

Gradient descent

Basically finding optimal weight

Find optimal weight

How to find best weight that minimizes loss? --> Lowest point in the graph --> Gradient is zero --> Stepping

Batch VS Epoch

Tips

Doesn't work

test += 1 + 1;

Java Doesn't throw integer exceptions

Integer.MAX_VALUE + 1;

Async functions

Write Asynchronous code (promises) in a synchronous manner

Await

makes the code wait at that point until the promise is settled, at which point the fulfilled value of the promise is treated as a return value, or the rejected value is thrown.

Important

Check for null

?.

My notes

Helpful Resources

Recap

{
 "key": "value"
}

	{
	"Healthtips": [
	{
	"healthtext": "drink water",
	"healthimage": "https://i.imgur.com/pa3wtnD.jpg"
	},
	{
	"healthtext": "eat fruits",
	"healthimage": "https://i.imgur.com/WaI9qBT.jpg"
	},