Vue Js Create/generate Random Token:To create a random token in Vue.js without a library, generate a string of characters using JavaScript’s built-in functions. Define a function that loops through the desired length, randomly selecting characters from a predefined set of options. Concatenate each character to form the token.

How can I generate a random token in Vue js?

This Vue.js script generates a random token using the generateRandomToken method. The method takes a length parameter, which determines the length of the token to be generated. The method first initializes a string of characters containing uppercase letters, lowercase letters, and digits.

It then checks if the window.crypto object is available in the current environment. If it is, the method uses the crypto.getRandomValues function to generate random values and create the token by selecting characters from the characters string based on the generated values.

If window.crypto is not available, the method falls back to using Math.random() to generate random indexes and select characters from the characters string.

The generateToken method is responsible for calling generateRandomToken with a length of 10 and assigning the generated token to the token property in the Vue  app‘s data.

Vue Js Create/generate Random Token Example

<script type="module" >
    const app = new Vue({
    el: "#app",
    data() {
        return {
            token: '',
        };
    },
    methods: {
        generateRandomToken(length) {
            const characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
            const charactersLength = characters.length;
            let token = '';

            if (typeof window !== 'undefined' && window.crypto) {
                const randomValues = new Uint32Array(length);
                window.crypto.getRandomValues(randomValues);

                for (let i = 0; i < length; i++) {
                    token += characters.charAt(randomValues[i] % charactersLength);
                }
            } else {
                // Fallback to Math.random() for environments without window.crypto support
                for (let i = 0; i < length; i++) {
                    const randomIndex = Math.floor(Math.random() * charactersLength);
                    token += characters.charAt(randomIndex);
                }
            }

            return token;
        },
        generateToken() {
            const randomToken = this.generateRandomToken(10);
            this.token = randomToken;
        },
    },
});
</script>

Output of Vue Js Create/generate Random Token