What is the best way to deal with this type of scenario in JavaScript?

My text field has a regular expression validation that should not accept the value "0". Do I need to use an "and" condition or an "OR CONDITION" in the if statement below?

var regex = /^[0-9][0-9]{0,3}$|^[0-9][0-9]{0,3}[\.][0-9]$/;
if(!regex.test($('#text1').val()))
{  
   alert("please ");     
}

Answer №1

Instead of relying on regex to validate if the user input is not equal to 0, you can simplify the process by using a straightforward approach like this:

let userInput = parseFloat($('#inputField').val());
if (userInput == 0 ) {
  alert("Please enter a valid number");
}

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