convert a JavaScript string variable to decimal money

Question

How can we convert a JavaScript string variable to decimal   Is there a function such as    parseInt document getElementById amtid4  innerHTML

User · Answer

You can also use the Number constructor function  no need for a radix and usable for both integers and floats    Number  09       gt  9 Number  09 0987       gt  9 0987   Alternatively like Andy E said in the comments you can use   for conversion    09      gt  9   09 0987      gt  9 0987

User · Answer

Yes -- parseFloat  parseFloat document getElementById amtid4  innerHTML     For formatting numbers  use toFixed  var num   parseFloat document getElementById amtid4  innerHTML  toFixed 2    num is now a string with the number formatted with two decimal places

User · Answer

I made a little helper function to do this and catch all malformed data  function convertToPounds str         var n   Number parseFloat str       if  str    isNaN n     n  lt  0  return 0      return n toFixed 2       Demo is here

User · Answer

An easy short hand way would be to use  x It keeps the sign intact as well as the decimal numbers  The other alternative is to use parseFloat x   Difference between parseFloat x  and  x is for a blank string  x returns 0 where as parseFloat x  returns NaN

User · Answer

This works   var num   parseFloat document getElementById amtid4  innerHTML  10  toFixed 2

User · Answer

var formatter   new Intl NumberFormat  ru       style   currency     currency   GBP       alert  formatter format 1234 5        1 234 5      https   developer mozilla org en docs Web JavaScript Reference Global Objects NumberFormat

User · Answer

It is fairly risky to rely on javascript functions to compare and play with numbers  In javascript  0 1 0 2    0 3  will return false due to rounding errors  Use the math js library

[javascript] convert a JavaScript string variable to decimal/money

Examples related to javascript

Examples related to decimal

Examples related to string-conversion