Set PIN validation with JavaScript?

JavascriptWeb DevelopmentFront End TechnologyObject Oriented Programming

You can validate pin on the basis of length and type of pin must be string etc.

Example

Following is the code −

function simpleValidationForPin(pinValues) {
   if (!(typeof pinValues === "string" && !~pinValues.indexOf('.') && !isNaN(Number(pinValues)) && (pinValues.length === 2 || pinValues.length === 4))) {
      return false;
   } else {
      return true;
   }
}
if (simpleValidationForPin("0000.00") == true)
   console.log("This is a valid pin")
else
   console.log("This is not a valid pin")
if (simpleValidationForPin(66) == true)
   console.log("This is a valid pin")
else
   console.log("This is not valid pin")
if (simpleValidationForPin("4444") == true)
   console.log("This is a valid pin")
else
   console.log("This is not a valid pin")
if (simpleValidationForPin("66") == true)
   console.log("This is a valid pin")
else
   console.log("This is not valid pin")
if (simpleValidationForPin("666") == true)
   console.log("This is a valid pin")
else
   console.log("This is not a valid pin")

To run the above program, you need to use the following command −

node fileName.js.

Here, my file name is demo254.js.

Output

This will produce the following output on console −

PS C:\Users\Amit\javascript-code> node demo254.js
This is not a valid pin
This is not a valid pin
This is a valid pin
This is a valid pin
This is not a valid pin
raja
Published on 09-Nov-2020 07:07:36
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