How to use Queue In Javascript

In this approach,

  • We use a queue to iteratively generate binary strings from the ‘X’ pattern.
  • Expands the queue by appending ‘0’ and ‘1’ for ‘X’ characters or preserving non-‘X’ characters.
  • Prints valid binary strings when they reach the pattern’s length.

Example: In this example, we are using the above-explained approach.

Javascript
function generateBinaryStrings(str) {
    const queue = [''];

    for (let i = 0; i < queue.length; i++) {
        const current = queue[i];

        if (current.length === str.length) {
            console.log(current);
        } else {
            const nextIndex = current.length;
            if (str[nextIndex] === 'X') {
                queue.push(current + '0');
                queue.push(current + '1');
            } else {
                queue.push(current + str[nextIndex]);
            }
        }
    }
}

const result = 'X1X';
generateBinaryStrings(result);

Output
010
011
110
111

JavaScript Program to Generate all Binary Strings From Given Pattern

In this article, we are going to learn about Generating all binary strings from a given pattern in JavaScript. Generating all binary strings from a given pattern involves creating a set of binary sequences that follow the pattern’s structure, where specific positions in the sequences can be filled with ‘0’ or ‘1’ based on the pattern’s placeholders or rules.

Table of Content

  • Using Recursion
  • Using Queue
  • Using bitwise operations

We will explore all the above methods along with their basic implementation with the help of examples.

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