How to allow only alphabets and space in input field in javascript?

How to allow only alphabets and space in input field in javascript?

Input type text and allow only letters and space in HTML is very easy. In the input tag use onkeypress javascript event and write code for letters and spaces between double quote. This is completed in only one line code. This validation get only letters and spaces not numbers or special characters, etc.

How to validate only alphabets in jquery?

validator. addMethod(“lettersonly”, function(value, element) { return this. optional(element) || /^[a-z,” “]+$/i. test(value); }, “Letters and spaces only please”);

How do you check if a string contains only letters and spaces in Javascript?

“javascript regex only letters and spaces” Code Answer

1. //regex expression:
2. var reg_name_lastname = /^[a-zA-Z\s]*$/;
3. ​
4. //Validation to the user_name input field.
5. if(! reg_name_lastname. test($(‘#user_name’). val())){ //
6. alert(“Correct your First Name: only letters and spaces.”);
7. valid = false;
8. }

How do I make an input field accept only letters in HTML?

You can write a JavaScript form validation script to check whether the required field(s) in the HTML form contains only letters. To get a string contains only letters (both uppercase or lowercase) we use a regular expression (/^[A-Za-z]+$/) which allows only letters.

How do you restrict alphabets and special characters in a text box using jQuery?

1. $(function () {
2. $(“#txtName”).keypress(function (e) {
3. var keyCode = e. keyCode || e. which;
4. $(“#lblError”). html(“”);
5. //Regex for Valid Characters i.e. Alphabets and Numbers.
6. var regex = /^[A-Za-z0-9]+$/;
7. //Validate TextBox value against the Regex.
8. var isValid = regex.test(String.fromCharCode(keyCode));

How do I check if a String contains only characters?

Read the String. Convert all the characters in the given String to lower case using the toLower() method. Convert it into a character array using the toCharArray() method of the String class. Find whether every character in the array is in between a and z, if not, return false.

How to allow only alphabets in input field?

If it lies between capital range and small range, the function will return true and character will be allowed otherwise not. The event object is the key press event which contains the character entered from keyboard. Hope you like the article. Share your thoughts in the comments below.

Can a textbox accept only alphanumeric characters and space?

The script works in such a way that the TextBox will accept only alphabets, numbers i.e. alphanumeric values with space character, thus unless a special character key has been specified to be excluded it won’t be accepted. The following HTML Markup consists of an HTML TextBox and an HTML SPAN.

How to allow only alphanumeric characters in JavaScript?

Our Support Team is here to help. Here Mudassar Ahmed Khan has explained with an example, how to allow only AlphaNumeric character values i.e. Alphabets and Numbers with Space character in TextBox using JavaScript.

When to use only alphabets in JavaScript?

Sometimes we want the data to be in specific format, like for name which should be in alphabets only. To deal such type of situations, JavaScript provides us the ability to handle the situation. Using the JavaScript events that contains the data such as mouse movement, or characters input from keyboard.