How to usea regular expression in Javascript
In this approach regular expression to convert a string to a boolean value in JavaScript.
Example: In this example, the regular expression /^true$/i is used with the test() method to check if the string matches the pattern “true” (case-insensitive). The ^ symbol denotes the start of the string, $ denotes the end of the string, and the i flag makes the pattern case-insensitive.
let str = "true";
let boolValue = /^true$/i.test(str);
console.log(boolValue);
Output
true
JavaScript Convert a string to boolean
To Convert a string to Boolean, we have multiple approaches. We are going to learn how to Convert a string to Boolean.
Below are the approaches used to Convert a string to Boolean:
Table of Content
- Approach 1: Using JavaScript == Operator
- Approach 2: Using JavaScript === Operator
- Approach 3: Using the Boolean() function
- Approach 4: Using a regular expression
- Approach 5: Using the !! (double negation) operator
- Approach 6: Using JSON.parse()
- Approach 7: Using Ternary Operator
- Approach 8: Using Switch Case
- Approach 9: Using a Custom Map Function