Input field value - remove leading zeros

Question

I have a textbox in Javascript. When I enter \'0000.00\' in the textbox, I want to know how to convert that to only having one leading zero, such as \'0.0

Answer 1

str.replace(/^0+(?!\.|$)/, '')

  '0000.00' --> '0.00'   
     '0.00' --> '0.00'   
  '00123.0' --> '123.0'   
        '0' --> '0'