Check If only numeric values were entered in input jQuery

Question

I would like to check if users enter correct phone number in  with help of jQuery  so far I got to this stage   var phone      input phone   val    if  phone                 Check if phone is numeric        label phone error   show      Show error        input phone   focus      Focus on field     return false      Basically it checks if phone number was entered and if it was  I would like to check if it is a numeric value and if it is not display the error messages  Could anyone help with checking if it is numeric

User · Answer

There is a built-in function in jQuery to check this  isNumeric   so try the following   var phone      input phone   val        if  phone         amp  amp     isNumeric phone         Check if phone is numeric      label phone error   show      Show error      input phone   focus      Focus on field   return false

User · Answer

for future visitors  you can add this functon that allow user to enter only numbers  you will only have to add jquery and the class name to the input check that into  http   jsfiddle net celia dvnL9has 2       phone number   keypress function event   var numero  String fromCharCode event keyCode    var myArray     0   1   2   3   4   5   6   7   8   9  0 1 2 3 4 5 6 7 8 9   index   myArray indexOf numero     1 var longeur      phone number   val   length  if window getSelection    text   window getSelection   toString       if index gt  0 amp text length gt 0      else if index gt  0 amp longeur lt 10        else  return false

User · Answer

Try this     it will make sure that the string  phone  only contains digits and will at least contain one digit  if phone match    d               your code here

User · Answer

if       -    d     d    test document getElementById  txtRemittanceNumber   value                 alert  Please enter only numbers into amount textbox                              else                           alert  Right Number                    I hope this code may help you   in this code if condition will return true if there is any legal decimal number of any number of decimal places  and  alert will come up with the message  Right Number  other wise it will show a alert popup with message  Please enter only numbers into amount textbox     Thanks

User · Answer

You can use jQuery method to check whether a value is numeric or other type     isNumeric     Example    isNumeric  46     true    isNumeric 46    true    isNumeric  dfd     false

User · Answer

I used this   jQuery validator addMethod  phoneUS   function phone number  element    phone number   phone number replace   s  g        return this optional element     phone number length  gt  9  amp  amp      phone number match    1-       2-9  d 2     2-9  d 2  -  2-9  d 2 -  d 4          Please specify a valid phone number

User · Answer

I used this to check if all the text boxes had numeric values   if    isNumeric    input text   val               alert  All the text boxes must have numeric values             return false          or for one     isNumeric    txtBox   val       Available with jQuery 1 7

User · Answer

http   docs jquery com Plugins Validation CustomMethods phoneUS  Check that out   It should be just what you re looking for   A US phone validation plugin for jQuery   If you want to do it on your own  you re going to be in for a good amount of work   Check out the isNaN   function   It tells you if it is not a number   You re also going to want to brush up on your regular expressions for validation   If you re using RegEx  you can go without isNaN    as you ll be testing for that anyway

User · Answer

This isn t an exact answer to the question  but one other option for phone validation  is to ensure the number gets entered in the format you are expecting   Here is a function I have worked on that when set to the onInput event  will strip any non-numerical inputs  and auto-insert dashes at the  right  spot  assuming xxx-xxx-xxxx is the desired output    lt input oninput  formatPhone    gt   function formatPhone e        var x   e target value replace   D g      match    d 0 3    d 0 3    d 0 4          e target value    x 2    x 1    x 1     -    x 2     x 3     -    x 3

User · Answer

I used this kind of validation      checks the pasted text and if it contains alphabets  shows an error for user and then clear out the box after delay for the user to check the text and make appropriate changes       txtbox   on  paste   function  e                var  this     this               setTimeout function  e                    if    this val    match    0-9  g                                             errormsg   html  Only Numerical Characters allowed   show   delay 2500  fadeOut  slow                                               setTimeout function  e                             this val null                         2500                                                       5

[javascript] Check If only numeric values were entered in input. (jQuery)

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