How do i compare 2 numbers in JavaScript

Question

I have the 2 numbers that I want to compare entertedAmount = 65.00 and maxPrice = 5000.00 in my JavaScript Function.

var entertedAmount = parseFloat(textbox.value).toFixed(2);
        var maxPrice = parseFloat(passedMaxPrice).toFixed(2);

        if (entertedAmount <= maxPrice) {
                var strSplit = textbox.id;
                var res = strSplit.split("_");
                var rownumber = res[2].substring(res[2].length, 3) - 1;
                arrRows[rownumber] = removeSpaces(textbox.value);
                sumArray();
                isSearchButtonPressed = false;
        } else {
            alert('Please enter a price less than R' + passedMaxPrice);
            textbox.value = 0;
        }

if the enteredAmount is less than maxPrice it must enter the if statement but now it is not entering the if statement , it is going to ELSE statement

`toFixed` returns a *string*. You probably want to round instead, so you have a number. — CertainPerformance, Jan 09 '19 at 10:25
Possible duplicate of [Javascript: Comparing two float values](https://stackoverflow.com/questions/3343623/javascript-comparing-two-float-values) — Karol Dowbecki, Jan 09 '19 at 10:32

score 2 · Accepted Answer · answered Jan 09 '19 at 10:59

The problem comes from your Tofixed function which converts the decimal obtained with parseFloat into a string. So you have to surround it with Number ().

var textbox = document.getElementById('textbox');
var entertedAmount = Number(parseFloat(textbox.value).toFixed(2));
var maxPrice = Number(parseFloat(5000).toFixed(2));


if (entertedAmount <= maxPrice) {
  console.log(entertedAmount + " less than "+ maxPrice );
    } else {
    alert('Please enter a price less than R');
        textbox.value = 0;
  }

<input id="textbox" type="number" value="522.5886"/>

score 0 · Answer 2 · edited Jan 09 '19 at 10:43

0

if(Number(entertedAmount) <= Number(maxPrice)){

}else{

}

edited Jan 09 '19 at 10:43

Hassan Imam

21,956
5
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51

answered Jan 09 '19 at 10:39

Merabi Pkhaladze

73
1
3

score 0 · Answer 3 · answered Jan 09 '19 at 10:51

0

toFixed returns a string so you have to parse that string into float

 if(parseFloat(entertedAmount) <= parseFloat(maxPrice)){

 } else{

    }

Hope this works for you.

answered Jan 09 '19 at 10:51

Raihan Ridoy

678
8
18

How do i compare 2 numbers in JavaScript

3 Answers3