New course! Every coder should learn Generative AI!
Try a free lesson+ 1
Can anyone help with the code
I shall find the max and min of 3 numbers. How should I write the isNaN part <!DOCTYPE html> <head> <title>If</title> </head> <body> <script> var a = parseFloat(prompt("insert a")), b = parseFloat(prompt("insert b")), c = parseFloat(prompt("insert c")); if (isNaN(a,b,c)){ alert("please insert a number"); if (a>b && a>c){ document.write("max=a") }else if(b>a && b>c) { document.write("max=b") }else (c>a && c>b){ document.write("max=c") } if (a<b && a<c){ document.write("min=a") }else if(b<a && b<c) { document.write("min=b") }else (c<a && c<b){ document.write("min=c") } </script> </body> </html>
4 Answers
+ 19
<!DOCTYPE html>
<head>
<title>If</title>
</head>
<body>
<script>
var a = parseFloat(prompt("insert a")),
b = parseFloat(prompt("insert b")),
c = parseFloat(prompt("insert c"));
if (isNaN(a)&&isNaN(b)&&isNaN(c)){
alert("please insert a number");
}else if (a>b && a>c){
document.write("max=a<br>")
}else if(b>a && b>c)
{
document.write("max=b<br>")
}else if (c>a && c>b){
document.write("max=c<br>")
}
if (a<b && a<c){
document.write("min=a")
}else if(b<a && b<c)
{
document.write("min=b")
}else if (c<a && c<b){
document.write("min=c")
}
</script>
</body>
</html>
0
I didn`t get why the output is false in both cases ?
NaN == NaN //false Aren`t the values same in this case?
NaN === NaN // false Isn`t th type undefined in both cases ?
- 1
Just for more info :)
Some NaN rules :
NaN == NaN //false
NaN === NaN // false
So you can check just like
if (a !=a && b != b && c != c)
Guess you will not use it,but it's pretty helpful info :)
- 2
@Manik Tafralian
var x = NaN;
console.log(x == x); //false
console.log(x === x); //false
console.log(typeof(x)); //number
1.Yep,values are same,but if we're talkin about comparing NaN to NaN - it doesn't equal itself anyway.
2.Type is "number"
Yeah...NaN(Not a Number) is number.
You can try it by yourself.
That's just one one weird things in js you should keep in mind.
Here should be reply...
"Welcome to JavaScript !" :D
Often have questions like this?
Learn more efficiently, for free:
Hot today
How do I start c#
1 Votes
Why doesn't this work?
1 Votes
Html img
2 Votes
Challenge accepted
2 Votes
Why am i getting this error?
0 Votes