Monday March 14

Interruptions & Events

• 2-5PM 1 on 1s

Remember

Daily JS

Logic and "Truthiness"

var hi = false;

var x = 20;

var y = function(wat) {
  console.log(wat);

  return wat === 10;
};

var z = 'false';

var a = (foo) => {
  if (foo) {
    console.log(`a works with ${foo.toString()}`);
  }
}

var noexist;

if (x) {
  console.log(`x is truthy?`); // "x is truthy?"
}

if (hi) {
  console.log(`hi is truthy?`); //
}

if (noexist) { // undefined
  console.log(`noexist is truthy?`);
}

if (y) {
  console.log(`y is truthy?`); // "y is truthy?"
}

if (z) {
  console.log(`z is truthy?`); // "z is truthy"
}

if (y(`10`)) { // returns false
  console.log(`y('10') is truthy?`);
}

if (a()) { // Does not log, returns nothing
  console.log(`a() is truthy?`);
}

if (a(null)) { // Does not log, returns nothing
  console.log(`a(null) is truthy?`);
}

if (a(10)) { // Log "a works with 10", returns nothing
  console.log(`a(10) is truthy?`);
}

Value vs Reference

// Variable Creation
var x;
// Variable Assignment
x = 10;
var y = x;
y = 12;

console.log(x); // 10
console.log(y); // 12

var z = {firstName: 'Bob'};
console.log(z.firstName); // "Bob"

var a = z;
a.firstName = 'Tim';
a = {firstName: 'Jan'};

console.log(z.firstName); // "Tim"
console.log(a.firstName); // "Jan"

var b = [15, 25, 30];
var c = b;
c[1] = 100;

console.log(b); // [15, 100, 30]
console.log(c); // [15, 100, 30]

a = b;

console.log(x); // 10
console.log(y); //12
console.log(z); // {firstName: "Tim"}
console.log(a); // [15, 100, 30]
console.log(b); // [15, 100, 30]
console.log(c); // [15, 100, 30]

Standups

• What is going well?
• What is not going well (what are you struggling with)?
• What's something you'd like to share not about code?
• What's something you've learned

Common Wins

• Starting to know what we're doing (2 weeks ago is starting to feel good)
• Starting to catch up
• Ask for help (it helps)
• Try things out

Common Struggles

• Navbar and Footer
• Get stuck on things for too long
• Backlog Planning
• Time Management
• Time Pressure

Topics

• Javascript Syntax Vocab
  • Variables
  • Maths
  • Strings
  • Arrays
  • Objects
  • Functions
  • if & else
  • while loop
  • for loop
• Node

Code

• Basic Example

https://github.com/TIY-TN-FEE-2016-spring/lesson-03-01

Homework

https://github.com/TIY-TN-FEE-2016-spring/assignments/tree/master/08-functions-tdd