Input type for HTML form for integer

Question

The code below is from an HTML form   If the input is supposed to be an integer  do I need to change the  type     lt div class  friend2title  gt       lt label for  url  gt Add points  lt  label gt   lt  div gt    lt div class  friend2field  gt       lt input name  state  type  text  id  state  maxlength  150  gt   lt  div gt

User · Answer

lt input type  number  step  1        By adding the step attribute  you restrict input to integers   Of course you should always validate on the server as well  Except under carefully controlled conditions  everything received from a client needs to be treated as suspect

User · Answer

Even if you want to accept numbers for the input  I would recommend using the text type    lt input type  text  name some-number    gt    Client-side run some jQuery validations to verify it s a number   Then in your server side code  run some validation to verify it is in fact a numerical value

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Prior to HTML5  input type  text  simply means a field to insert free text  regardless of what you want it be  that is the job of validations you would have to do in order to guarantee the user enters a valid number  If you re using HTML5  you can use the new input types  one of which is number that automatically validates the text input  and forces it to be a number  keep in mind though  that if you re building a server side app  php for example  you will still have to validate the input on that side  make sure it is really a number  since it s pretty easy to hack the html and change the input type  removing the browser validation

User · Answer

This might help    lt input type  number  step  1  pattern   d     gt    step is for convenience  and could be set to another integer   but pattern does some actual enforcing   Note that since pattern matches the whole expression  it wasn t necessary to express it as   d     Even with this outwardly tight regular expression  Chrome and Firefox s implementations  interestingly allow for e here  presumably for scientific notation  as well as - for negative numbers  and Chrome also allows for   whereas Firefox is tighter in rejecting unless the   is followed by 0 s only   Firefox marks the field as red upon the input losing focus whereas Chrome doesn t let you input disallowed values in the first place    Since  as observed by others  one should always validate on the server  or on the client too  if using the value locally on the client or wishing to prevent the user from a roundtrip to the server

User · Answer

No  it is not about the data type of input  It specifies the type of control to create      type   text password checkbox radio submit reset file hidden image button  CI        This attribute specifies the type of control to create  The default value for this attribute is  text

User · Answer

You should change your type to number If you accept decimals first and remove them on keyUp  you might solve this         state   on  keyup   function          this  val   this  val   replace                 or      state   on  keyup   function          this  val parseInt   this  val           This will remove the period  but there is no  Integer Type

User · Answer

If you re using HTML5  you should use the input type number  If you are using xhtml or html 4  input type should be text

[html] Input type for HTML form for integer

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