JavaScriptの基礎

foundation.js

//var
var example = 'some string';

//console.log
console.log(example);

//length
console.log(example.length);

//random number create
var round = 1.5;
rounded = Math.round(round);
console.log(rounded);

//replace string
var pizza = 'pizza is alright';
pizza = pizza.replace('alright', 'wonderful');
console.log(pizza); //pizza is wonderful

//array
var food = ['apple', 'pizza', 'pear'];
console.log(food); //all view
console.log(food[1]); //pizza

//if
var fruit = 'orange';
if (fruit.length > 5 ){
  console.log('The fruit name has more than five characters.');
}else{
  console.log('The fruit name has five characters or less.');
}

//for
var total = 0;
var limit = 10;
for(var i = 0; i <= limit; i++){
  total += i;
}
console.log(total); //55

//function
function math(x, y, z){
  return x + (y * z);
}
console.log(math(1, 2, 3)); //7

//number to string
var n = 128;
n = n.toString();
console.log(n);

//object
var pizza = {
  toppings: ['cheese', 'sauce', 'pepperoni'],
  crust: 'deep dish',
  serves: 2
}
console.log(pizza);