Is there a way to restrict users from inputting special characters, numbers, and spaces only in the first place of a word using regex in HTML?
<label><span>Current Carrier</span></label>
<input name='Current Carrier' type='text' class='form-control' pattern='[a-zA-Z]+$' for Physical Address'/>
You have the option to utilize
pattern="[A-Za-z].*"
Additional Information:
^(?:[A-Za-z].*)$ regex pattern that identifies an ASCII letter at the beginning of the string, followed by any number of characters other than line breaks, continuing until the end of the input string..* is necessary for the pattern regex to match the entire input.Take a look at the demonstration below:
input:valid {
color: black;
}
input:invalid {
color: red;
}<form name="form1">
<input pattern="[A-Za-z].*" title="Please enter the data in correct format." />
<input type="Submit" />
</form>One useful regex symbol to consider is the carrot symbol, which can be used to specify certain conditions for the first character in a string. For example, using /^[A-Za-z]/ will ensure that the first character must be a letter and cannot be a space, number, or special character.
After defining the criteria for the first character, you can continue writing the remaining regex pattern as needed.
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