CODEWITHSUNDEEP
javascriptjqueryfunction
NekoLopez
NekoLopez

Reputation: 609

Jquery/Javascript Function to get a result between two numbers

I want to get a certain result between two numbers. I made this:

var number = $("#number").val();

if(number>=1 && number<=5){
    alert('2 points!');
} else if(number>=6 && number<=10){
    alert('3 points!');
} else if(number>=11 && number<=15){
    alert('4 points!');
} else if(number>=16 && number<=20){
    alert('5 points!');
} 
...and continues...

I want a way to do this shorter, I would like some help.

Upvotes: 2

Views: 398

Answers (2)

Dmitry Ponkin
Dmitry Ponkin

Reputation: 414

If every range is equal, then you need this:

var number = $("#number").val();
var range = 5;
var points = Math.ceil(number / range) + 1;
alert(points + ' points!');

Upvotes: 2

tklg
tklg

Reputation: 2642

function getPoints(n) {
  if (!n || n < 1) return '';
  return Math.floor((n - 1) / 5) + 2 + " points!";
}
document.getElementById('a').addEventListener('keyup', function() {
  document.getElementById('b').innerText = getPoints(parseInt(this.value));
});
<input id="a" type="number" />
<span id="b"></span>

Upvotes: 1

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