What Is OTP In JavaScript?

OTP Means One Time Password For Secure Verification Process.

Mostly Used In Logins, Signups, And Payment Gateways.

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Why OTP Is Important In Applications?

OTP Adds An Extra Layer Of Security To Applications.

Helps Prevent Unauthorized Access To Sensitive User Data.

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Basic Logic To Generate OTP

We Use Math Functions To Generate Random Digits In JS.

Length Of OTP Can Be Customized As Per Need.

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Code To Generate 6 Digit OTP

This Function Returns A Random 6 Digit Numeric OTP.

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function generateOTP() { return Math.floor(100000 + Math.random() * 900000); }

Alphanumeric OTP Generator Function

Use Characters And Numbers For More Secure OTP Strings.

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function generateAlphaOTP(length) { let chars = "0123456789abcdefghijklmnopqrstuvwxyz"; let otp = ""; for (let i = 0; i < length; i++) { otp += chars[Math.floor(Math.random() * chars.length)]; } return otp; }

Display OTP On HTML Page

Use DOM Manipulation To Show OTP On The Screen.

You Can Trigger Generation On Button Click Too.

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<p id="otp"></p> <button onclick="document.getElementById('otp').innerText = generateOTP();"> Generate OTP </button>

Sending OTP To User (Concept)

Use APIs Like Twilio Or EmailJS To Send OTP.

Backend Also Validates OTP Entered By The User.

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