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Error with adding two strings in JavaScript [duplicate]

This question already has answers here:
How to force JS to do math instead of putting two strings together [duplicate]
(11 answers)
How to force addition instead of concatenation in javascript [duplicate]
(3 answers)
Closed 3 years ago.
I have the following error:
jquery-3.4.1.min.js:2 The specified value "24.164.83" is not a valid
number. The value must match to the following regular expression:
-?(\d+|\d+.\d+|.\d+)([eE][-+]?\d+)?
Code
var grossTotal = netPrice * vatTotal // Is OK - it multiplies values
but
var grossTotal = netPrice + vatTotal // It makes this error -
it doesn’t sum.

The easiest way to produce a number from a string is prepend with +
var grossTotal= +netPrice + +vatTotal;

Try this code:
var netPrice = 1.432;
var vatTotal = 14.423;
var grossTotal = parseFloat(netPrice) + parseFloat(vatTotal)// Change according to data type of netPrice and/or vatTotal
console.log(grossTotal);

Try with type conversion:
var answer = parseInt(netPrice ) + parseInt(vatTotal);

You can use this code, First format value using parseFloat
var netPrice = 2.3777;
var vatTotal = 1.3777;
var grossTotal = parseFloat(netPrice ) + parseFloat(vatTotal);
console.log(grossTotal);
var netPrice = 2;
var vatTotal = 1;
var grossTotal = parseInt(netPrice ) + parseInt(vatTotal);
console.log(grossTotal);
For more information about parseFloat
https://www.w3schools.com/jsref/jsref_parsefloat.asp

How can i fix my output will be 2 decimal Numbers ex:(.11) or it should be (.00) [duplicate]

This question already has answers here:
Formatting a number with exactly two decimals in JavaScript
(32 answers)
Closed 5 years ago.
i want to get the output "total_amounts" like,ex(255.545645 = 255.54) and (150 =150.00). This is my code
$('.topag').on('input', function(){
var parent = $(this).closest('.calt');
var totalAmt = parseFloat(parent.find('.totalpr').val());
var quantity = parseFloat($(this).val());
parent.find('.total_amount').text(totalAmt*quantity);
$('#total_amounts').val(totalAmt*quantity);
$('#total_amounts').val(total);
calcul_total_quatities();
How can i fix this issue.

var total = 23.64654465;
var total_dec = total.toFixed(2);
document.getElementById("load").innerHTML = total_dec;
<p id="load"></p>
You can use the toFixed() method. The details for this can be found at the following link. See code below for coding needed for your scenario
var totalqty = totalAmt*quantity;
var total = totalqty.toFixed(2);
document.getElementById("total_amounts").innerHTML = total;

Split a string into two using pure javascript [duplicate]

This question already has answers here:
How to use split?
(4 answers)
Closed 7 years ago.
I have a string like this 132+456 or 132-456 or 132*456..etc ,it changes dynamically but I need to split this into 132 and 456 how to do it using pure java script?

It should be as easy as:
var parts = '132+456'.split('+');
parts[0]; //132
parts[1]; //456

Like so
var data = '132+456'.split('+');
var a = data[0];
var b = data[1];
// document.writeln only for example
document.writeln(a);
document.writeln(b);

Java
String[] values='132+456'.split('+');
String firstPart=value[0]; // has 132
for js
var data = '132+456'.split('+');
var a = data[0];
var b = data[1];

How to call a variable from other functions in JavaScript? [duplicate]

This question already has answers here:
Accessing variables from other functions without using global variables
(10 answers)
Closed 8 years ago.
I am trying to compute the total cost and using alert to display the total cost when the user hit the Submit button. I don't know how to call a var from other functions. Is there a way to do it? Any help will be appreciated. Thank you!
<script type = "text/javascript">
function CostCalculate(){
var TotalCost = AppleCost + OrangeCost + BananaCost;
alert("Your total cost is $ " + TotalCost);
}
function getQuantity1(){
var promptNum = prompt("Enter numbers of Apple: ");
var AppleNum = parseInt(promptNum);
var AppleCost = AppleNum * 0.59;
}
function getQuantity2(){
var promptNum = prompt("Enter numbers of Orange: ");
var OrangeNum = parseInt(promptNum);
var OrangeCost = OrangeNum * 0.49;
}
function getQuantity3(){
var promptNum = prompt("Enter numbers of Banana: ");
var BananaNum = parseInt(promptNum);
var BananaCost = BananaNum * 0.39;
}

Helo, I think you should read something about the variables scope in javascript.
https://msdn.microsoft.com/en-us/library/ie/bzt2dkta(v=vs.94).aspx
You can't acces a variable that's declarated in another function. What you can do is defining the variable outside of the functions.

Select a random string from an array [duplicate]

This question already has answers here:
Closed 11 years ago.
Possible Duplicate:
JavaScript: Getting random value from an array
Could someone help me on this topic? I've got this code.
var textArray = [
'song1.ogg',
'song2.ogg'
]
audioElement.setAttribute('src', textArray);
How can I randomly get one of those strings into my audio element?
Would be glad if someone can help....

var textArray = [
'song1.ogg',
'song2.ogg'
];
var randomNumber = Math.floor(Math.random()*textArray.length);
audioElement.setAttribute('src', textArray[randomNumber]);

var randomIndex = Math.floor(Math.random() * textArray.length);
var randomElement = textArray[randomIndex];