e
ehcanadian
08/23/2021, 8:57 PMEek
🤣 2
c
Craig
08/23/2021, 9:00 PMGotta love javascript!
Craig
08/23/2021, 9:00 PMWould be interesting to see what isNumber() looks like in util
b
battk
08/23/2021, 9:02 PM Copy code
/**
* Determines if a variable refers to a number
*
* @memberof util
* @name util.isNumber
*
* @param obj
* @returns {boolean}
*/
function isNumber(obj) {
return Object.prototype.toString.call(obj) === "[object Number]";
}battk
08/23/2021, 9:02 PMmissing code to handle NaN
c
Craig
08/23/2021, 9:09 PM@battk how did you find the impl?
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battk
08/23/2021, 9:10 PMclientside debugger
c
Craig
08/23/2021, 9:10 PM Copy code
/**
* Determines if a variable refers to a number
*
* @memberof util
* @name util.isNumber
*
* @param obj
* @returns {boolean}
*/
isNumber: function (obj) {},Craig
08/23/2021, 9:10 PMAhh right
s
stalbert
08/23/2021, 9:43 PMI don't use that
utils
Sandii
08/23/2021, 9:50 PMI mean that is expected, the
typeofNaNnumber😂 1
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reptar
08/24/2021, 1:17 PMOntologically curious, but makes sense. NaN is the result of numerical operations, so having it be a number seems like a reasonable design choice.
s
stalbert
08/24/2021, 2:13 PMnevertheless,
NaNr
reptar
08/24/2021, 2:21 PMWell NaN itself is a number, that's what Sandii is saying. It indicates that your value is not a number, but NaN itself is. I get what you mean tho. isNumber() is hardly a good indicator of numericity in the mathematical sense. In the categorical/typing sense tho, isNumber(NaN) === true makes perfect sense.
reptar
08/24/2021, 2:23 PMSorry, I have a degree in philosophy. lol
e
ehcanadian
08/24/2021, 2:23 PMI probably should have read the docs closer; the example includes
util.isNumber(Nan) //returns trueehcanadian
08/24/2021, 2:24 PMI didn't realise
NaN2 Views