How to useparseInt() in Javascript
Another approach is to use the parseInt() function in JavaScript. We try to convert the string into a number using parseInt(). If the string represents a binary number, parseInt() will successfully convert it into a number. We then compare this number with the original string. If they match, it means the string is a binary string.
Example: This example shows the implementation of the above-explained approach.
Javascript
function isBinaryString(str) { // Try to convert the string into // a number using parseInt() const num = parseInt(str, 2); // Compare the converted number // with the original string return num.toString(2) === str;}console.log(isBinaryString("101010"));console.log(isBinaryString("10102")); |
Output
true false
Check if a Given String is Binary String or Not in JavaScript
Binary strings are sequences of characters containing only the digits 0 and 1. Other than that no number can be considered as Binary Number. We are going to check whether the given string is Binary or not by checking it’s every character present in the string.
Example:
Input: "101010"
Output: True, binary string
Input: "110211"
Output: Falee,
Explanation: This input has "2" in string and that is not a binary number.
These are the following approaches:
Table of Content
- Using Regular Expression
- Using Loop through characters
- Using parseInt()
- Using every() method