Convert a String to an Integer in JavaScript Use Cases
The JavaScript Date object is used to get dates and times. It helps in formatting the dates. We can use the new keyword to create an object for Date. To convert a Date to a Number, we use the getTime() method.
To convert a string into an integer without using parseInt(), we can use the following:
- Using coercion
- Using the Number() function
- Using the unary + operator
- Using Math floor() Method
- Using Math.ceil( ) function
We could be using a method (or a function) provided by JavaScript called as parseInt().
JavaScript is best known for web page development but it is also used in a variety of non-browser environments. You can learn JavaScript from the ground up by following this JavaScript Tutorial and JavaScript Examples.
Convert a String to an Integer in JavaScript
In JavaScript, it’s quite common to find yourself with a number trapped inside a string. This can happen when you’re dealing with user input, reading data from a file, or working with a third-party API. But JavaScript provides several handy methods to free that number and convert it into an integer. This is super useful when you need to do some math or comparisons with those numbers.
Table of Content
- Approach 1: Convert String to an Integer using parseInt() Method
- Approach 2: Convert String to an Integer using Number() Method
- Approach 3: Convert String to an Integer using Unary Operator
- Approach 4: Convert String to an Integer using Math.floor() Method
- Approach 5: Convert String to an Integer using Bitwise Operator
- Error Handling in Converting Strings to Integers in JavaScript