performs concatenation instead of addition javascript [closed]

Answer 1

Try:

var y=parseInt($("#text").val());
var z=10;
var x=y+z;

Answer 2

This line:

var y=$("#text").val();

returns a string.

What you need to do is convert/coerce this result to a number using one of the following methods:

var y = parseInt($("#text").val(), 10);

var y = parseFloat($("#text").val()); //  returns a floating point number

var y = Number($("#text").val());

var y = +$("#text").val();

Answer 3

An inputs value is always a string, and adding a string with a number will always end up as a string.

To solve it, convert the string to a number with either parseInt or parseFloat, depending on what the value is (integer or float), or just convert it to a Number type with a plus operator in front of it:

var y = +$("#text").val();
var z = 10;
var x = y+z;

Answer 4

Because the value of an input is text.

You need to convert it into numeric.

var x = +(y) + z;

+(y) will safely make it numeric, if it is a number.

Answer 5

var y=parseInt( $("#text").val() );