CODEWITHSUNDEEP
javascripthtml
Bryson Noble
Bryson Noble

Reputation: 351

Javascript loop either not running or not ending

I want to start with a large number in a variable, and while it is larger than another number, subtract 100 from the variable. I then want the loop to put the variable in the "demo" paragraph, which should end up being 89. Any help is appreciated.

var x = 789
while x > 100 {
  x = x-100
}
document.getElementById("demo").innerHTML = x;
<p id="demo"></p>

Upvotes: 0

Views: 66

Answers (4)

Beeblbrox
Beeblbrox

Reputation: 351

Uhm - ok - I am really really really rusty at programming, but... you want to generate a predetermined static number and place that static number in a static html element programmatically? WTF man?

<p id="demo">89</p>

Is your solution.

No Javascript req'd. Unless you were hoping for a 'countdown' effect which: 1) Wont work with this code. 2) Wont work with corrected code. 3) Would work with a different methodology so fast you wont see it (you would have to introduce 'sleep' timers and so on).

It's been a bad day please don't take a picture.

Upvotes: 0

Aditya Thakur
Aditya Thakur

Reputation: 2610

try this, 

function sub(x){
while(x > 100){
x = x-100
}
return x
}
document.getElementById("demo").innerHTML = sub(789);

Upvotes: 1

Chizzele
Chizzele

Reputation: 292

Using parenthesis in the while will fix your problem, just a small syntactical error

var x = 789
while (x > 100) {
  x = x-100
}

Upvotes: 1

UncleDave
UncleDave

Reputation: 7188

Your while condition must be wrapped in parentheses.

var x = 789
while (x > 100) {
  x = x-100
}
document.getElementById("demo").innerHTML = x;
<p id="demo"></p>

Upvotes: 4

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