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I am new to making websites. I am making one to convert grams of sugar into no of teaspoons. I am not able to understand how to limit the decimal points in the output. 

<script type="text/javascript">

function calcTS() {
var g=document.getElementById('wt').value;
var ts=document.getElementById('Tspoon').value;

document.getElementById('Tspoon').value = g/4.2;
}   

function calcG() {
var g=document.getElementById('wt').value;
var ts=document.getElementById('Tspoon').value;

document.getElementById('wt').value= ts*4.20;
}

This is the output I am getting: 1 gram of sugar = 0.23809523809523808 teaspoons.

The output that I want: 1 gram of sugar = 0.2 teaspoons.

Ashish Saran
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2 Answers2

4

You can use toFixed method to limit the decimals.

var num = 5.56789;
var n = num.toFixed(2);
console.log(n);
Jaydeep
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1

Use toFixed and the parameter of it is how deep the result after the point.

document.getElementById('wt').value= (ts*4.20).toFixed(1);
Ziv Ben-Or
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