In my form, users are required to set up a new Username. The problem arises when they include a space in their username, which I want to prevent.
Currently, I am able to detect the presence of a space with this code:
var hasSpace = $('#usernameValue').val().indexOf(' ')>=0;
However, I am struggling to make the form check for spaces as the user types into the input field.
How can I modify my code to achieve this functionality?
Thank you!
To implement the functionality, you can utilize the keyup event listener. In this instance, it detects if the user has inputted a space and notifies them with an alert message.
$('#inputField').keyup(function(event) {
if (event.which === 32) {
alert('Space detected in input');
// Add any necessary logic here
}
});
Are you currently utilizing an input tag in your code?
If you are, consider using the pattern attribute to specify a regular expression that excludes spaces. Here's an example:
<input type="text" name="username" pattern="/^\S*$/">
For more details and examples, visit: https://www.w3schools.com/tags/att_input_pattern.asp.
Implementing the onkeyup event listener.
input.onkeyup = function(){
var hasSpace = $('#usernameValue').val().includes(' ');
}
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