isBase64 Function Documentation

The isBase64 function checks if the input string is a valid Base64 string. It returns true if the string is a valid Base64, and false otherwise.

Import

The function can be imported using ES6 syntax from the "multiform-validator" package:

import { isBase64 } from 'multiform-validator';

Alternatively, you can import the function using CommonJS syntax with require (Node.js):

const { isBase64 } = require('multiform-validator');

Parameters

The function takes one parameter:

• value (string) - The input string to check if it is a valid Base64 string.

Examples

// Example 1 - Checking if the string is a valid Base64
const result1 = isBase64('SGVsbG8gV29ybGQh');
console.log(result1); // true

// Example 2 - Checking a non-Base64 string
const result2 = isBase64('こんにちは');
console.log(result2); // false

// Example 3 - Checking a non-Base64 string with digits
const result3 = isBase64('12345');
console.log(result3); // false

// Example 4 - Checking a null value
const result4 = isBase64(null);
console.log(result4); // false

Notes

The function expects the input value to be passed as a string. It checks if the string is a valid Base64 string using a regular expression. If the input is not a string or an empty string, it throws an error.