Functions
function lifeIn(age) {
var day=(90-age)*365;
var week=(90-age)*52;
var month=(90-age)*12;
console.log("You have "+day+" days,"+week+" weeks,"+month+" months left.");
}
lifeIn(56);
Arrays
var guestName=prompt("what's your name?");
var guestList=["Angela","Jack","Sam","Andrea","Messi","Erdi"];
if(guestList.includes(guestName)){
console.log("Welcome!");
}
else{
console.log("Sorry, maybe next time.");
}
includes is true or false return value.
3 fizz 5 buzz 3 and 5 fizzbuzz write code:
var output=[];
var count=1;
function fizzBuzz() {
if(count%3===0 && count%5===0)
{
output.push("FizzBuzz");
}
else if(count%3===0){
output.push("fizz");
}
else if(count%5===0){
output.push("buzz");
}
else{
output.push(count);
}
count++;
console.log(output);
}
Print:
functions, arrays and math library(floor – random):
var names=["angela","ben","Jenny","Micheal","Chloe"];
function whosPaying(names) {
var numberOfPeople=names.length;
var rnd=Math.floor(Math.random()*numberOfPeople);
var randomPerson=names[rnd];
return randomPerson+" is going to buy lunch today.";
}
whosPaying(names);
Print: