---
tags: mstu5003, doodle
---
# Data of a daily life
---
```:javascript=
// Jessie Feng is a girl who just graduate from the college.
let name = "Jessie Feng";
let age = 23;
let female = true;
//on records the start time, down records the end time.
let time;
let on;
let down;
//wake up button starts timer and reminds to eat breakfast.
function wake(){
//Timer pops up a warning window every 2000ms to indicate the text.
time=setInterval(function(){
alert("Eat breakfast please")
},2000)
//Record click time.
on=Date.now()
confirm(arr[1])
}
//Sleep button and end the timer.
function sleep(){
//Clear timer and pop up warning window for text.
ClearTimeout(time)
alert("Nighty Nighty")
//Record click time.
down=Date.now()
//Pop-up warning window to calculate the time difference between the two events.
alert("waking hours"+(down-on)+"s")
}
//Create an array of restaurants.
var arr=["Absolute Bagels","Panda Express","Popeyes","Junzi Kitchen","Uncle Luoyang"]
//Start using the choice method
function choice(){
let num=0;
var r=confirm("what to eat today"+arr[num]);
//while loop, when false is selected, the array is incremented
while(r==false&&num<5){
num++
r=confirm("what to eat today"+arr[num])
}
//Jump out of the loop when true is selected and pop out the last array element.
if(num<=5){
alert("ok"+arr[num])
}else{
//A warning box pops up when all selections are false.
alert("Are you not hungry?")
}
}
```