Thursday October 29

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()}`);
  }
}

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

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

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

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

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

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

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

if (a(null)) {
  console.log(`a(null) is truthy?`);
}

if (a(10)) {
  console.log(`a(10) is truthy?`);
}


/* Results */
// "x is truthy?"
// REFERENCE ERROR (noexist is not defined)
// "y is truthy?"
// "z is truthy?"
// "10"
// "a works with 10"

* talking about functions not the actual evaluated values when a function is called ** when undefined doesn't throw a reference error

Topics

• SASS Extends
• SASS Mixins
• Bourbon
• Neat
• Deploying To Github Pages With Broccoli

Code

https://github.com/TIY-LR-FEE-2015-Fall/lesson-02-04

Resources

• Bourbon Docs
• Neat Docs

Homework

https://github.com/TIY-LR-FEE-2015-Fall/assignments/tree/master/07-blog