Most voted "nan" questions
14 questions
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36
votes5
answers4312
viewsWhat does Nan mean in Javascript?
When we have an error in the sum of a number with Javascript, it is returned NaN. Example: parseInt('a') + 3; //NaN What does it mean NaN?…
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13
votes2
answers1270
viewsWhy is the NAN constant evaluated as True when testing it with is_numeric?
I was doing a test with the constant NAN in PHP, because until then I had never used it. I did tests out of curiosity. I noticed something interesting. When calling the function is_numeric in NAN…
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4
votes3
answers1253
viewsJS variable returning Nan
I’m assigning the sum of a column in an HTML table to a JS (sum) variable, but when I print it on the screen I get an Nan, someone knows why? <tr> <td style="background:#c4ffd6;"…
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3
votes1
answer103
viewsWhy is Nan bigger than any number?
A practical example of this statement is: parseInt(50) > parseInt('a'); When running this operation on a console, for example, the result is false. The real code that brought me to this question…
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3
votes4
answers1152
viewsJavascript function with Nan error
Hello. I am encountering a problem when executing this formula as the final answer is given as Nan. In a simplified way to explain the code, it works like this: there are two groups of three…
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3
votes3
answers126
viewsString to date.parse Javascript conversion problem
I’m getting in a date value variable on string and making the conversion to date, to be able to make a condition. The problem is that when the date comes as 31/12, the variable gets NaN. Follow the…
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1
votes1
answer267
viewsParseint() is returning Nan
My code is this: arrayCods = lista.split(","); var i_rem = document.getElementById('listaUsuarios').value; //Até aqui tudo bem, a i_rem contém um valor numérico extraído do html. i_rem =…
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1
votes1
answer320
viewsNotice: "In sqrt(diag(Object$vcov)): Nans produced" in Hurdle Model
Hello! I have a data set, with which I intend to perform a test to analyze the influence of some predictive variables on a response variable; as there are many zeros in my response variable (there…
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1
votes0
answers60
viewsWhy does Nan === Nan return false in Javascript?
In Javascript, when comparing two values NaN (Not-A-Number), the result is false. However this does not occur with values like null and undefined. console.log(NaN === NaN, null === null, undefined…
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0
votes2
answers1064
viewsSum of number in typescript is resulting in Nan
I’m making a code to get the average values of a list, however the result is being Nan (not a number). import { SimpleTableAnalysis } from '../model/SimpleTableAnalysis' import { UserInfo } from…
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votes2
answers86
viewsNan in javascript tabulated algorithm
function tabuada() { let num = document.getElementById('txtn') let tab = document.getElementById('seltab') if (num.value.length == 0) { …
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votes2
answers37
viewsBalance calculation (Credit - Debit) resulting in Nan
I’m a rookie and I’m learning launchbase’s Ootcamp. By making a JS that calculates credit - debits, is giving me Nan, although Typeof is saying it’s a number... Can help with what I did wrong? const…
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votes2
answers65
viewsOn the Javascript part, how do I convert a number? Nan’s It
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport"…
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votes1
answer79
viewsHow to get rid of Nan when I erase the i8 field
I have a form with two fields i8 and i9 and a function calcular which places the results in a field result. When the field i8 is blank and function calcular() is called, appears written on it NaN.…