Numbers with commas in Javascript

Question

I have a javascript function that accepts a number and performs a mathematical operation on the number. However, the number I\'m passing in could have a comma in it, and fr

Answer 1

Converts comma delimited number string into a type number (aka type casting)

+"1,234".split(',').join('') // outputs 1234

Breakdown:

+             - math operation which casts the type of the outcome into type Number
"1,234"       - Our string, which represents a comma delimited number
.split(',')   - split the string into an Array: ["1", "234"], between every "," character
.join('')     - joins the Array back, without any delimiter: "1234"

And a simple function would be:

function stringToNumber(s){
  return +s.split(',').join('');
}