Are there any side effects if i convert a string to a number like below..    var numb=str*1;   If I check with the below code it says this is a number..    var str="123"; str=str*1; if(!isNaN(str)) {   alert('Hello');    }   Please...

parseFloat("NaN")   returns "NaN", but  parseFloat("NaN") == "NaN"   returns false. Now, that's probably a good thing that it does return false, but I don't understand how this is so. Did the JavaScript creat...

When I pull the values I want to multiply, they're strings. So I pull them, parse them as floats (to preserve the decimal places), and multiply them together.  LineTaxRate = parseFloat(myRate) * parseFloat(myQuantity) * parseFloat(myTaxRateRound)...

I wrote a function that behaves differently depending on the numeric type of it's parameters. Integer or float.  Using some code from this question How do I check that a number is float or integer? it was easy to detect if float or not but then I...

I'm trying to get parseFloat to convert a userInput (prompt) into a number.   For example:  var userInput = prompt("A number","5,000")  function parse_float(number) {     return parseFloat(number) }   When userInput = 5,000, parse...

I am very new to javascript as I am currently making a cross platform web app in jQuery Mobile, I have used the example of XML Parsing to a HighCharts graph yet when I encounter a null in my series data it fails to draw any of the line and makes it i...

Hi I have a string of numbers separated by commas, "100,200,300,400,500" that I'm splitting into an array using the javascript split function:  var data = []; data = dataString.split(",");   I'm trying to parse the values of t...

Free jqgrid contains 3 columns:  Price, Quantity and Sum.  html5 number input type is used.  If Sum column is changed in inline edit, Price column value should calculated using formula     Price = Sum / Quantity;   I tried to implement this using jqg...

parseFloat(1.51e-6); // returns 0.00000151  parseFloat(1.23e-7); // returns 1.23e-7 // required 0.000000123   I am sorting table columns containing a wide range of floating-point numbers, some represented in scientific notation.  I am using the jQuer...

In my code, the value of a particular var can originate from any one of a number of different json sources.  For some of those sources, the json element concerned will be a string (e.g. "temp": "10.2"), while for other sources the jso...