I’m reading this but I’m confused by what is written in the parseInt with a radix argument chapter Why is it that parseInt(8, 3) → NaN and parseInt(16, 3) → 1? AFAIK 8 and 16 are not base-3 numbers, so parseInt(16, 3) should return NaN too 3 Answers 3
In Haskell, what is the difference between an Int and an Integer? Where is the answer documented? 6 Answers 6
This question already has answers here: How do I generate random integers within a specific range in Java? (70 answers) Closed 7 years ago. I would like to know how to generate a random number between two given values. I am able to generate a random number with the following: Random r = new Random(); … Read more
How does one specify the maximum value representable for an unsigned integer type? I would like to know how to initialize min in the loop below that iteratively computes min and max lengths from some structs. var minLen uint = ??? var maxLen uint = 0 for _, thing := range sliceOfThings { if minLen … Read more
I am trying hard to compare two floating point numbers within a Bash script. I have two variables, e.g. let num1=3.17648e-22 let num2=1.5 Now, I just want do a simple comparison of these two numbers: st=`echo “$num1 < $num2” | bc` if [ $st -eq 1]; then echo -e “$num1 < $num2” else echo -e … Read more
How do we remove all non-numeric characters from a string in Python? 7 Answers 7
My end goal is to validate an input field. The input may be either alphabetic or numeric. 14 Answers 14
I would like to dynamically generate a string of text based on a current day. So, for example, if it is day 1 then I would like my code to generate = “Its the <dynamic>1*<dynamic string>st</dynamic string>*</dynamic>”. There are 12 days in total so I have done the following: I’ve set up a for loop … Read more
I decided to create simple isEven and isOdd function with a very simple algorithm: function isEven(n) { n = Number(n); return n === 0 || !!(n && !(n%2)); } function isOdd(n) { return isEven(Number(n) + 1); } That is OK if n is with certain parameters, but fails for many scenarios. So I set out … Read more
Is there a way to force the number keyboard to come up on the phone for an <input type=”text”>? I just realized that <input type=”number”> in HTML5 is for “floating-point numbers”, so it isn’t suitable for credit card numbers, ZIP codes, etc. I want to emulate the numeric-keyboard functionality of <input type=”number”>, for inputs that … Read more
