How To Convert Float To Int In JavaScript
Converting float numbers to integers in JavaScript
How To Convert Float To Int In JavaScript
Converting a float to an int in JavaScript is useful when you want to remove the decimal part of a number and work with whole numbers only. This conversion can be advantageous in scenarios where you need to perform mathematical operations that require integers, such as array index manipulation or calculations that do not involve fractional values. By converting a float to an int, you can simplify your calculations and ensure that your results align with the requirements of your specific use case. Simply using JavaScript's built-in `Math.floor()`, `Math.ceil()`, or `Math.round()` methods can help achieve this conversion.
To Download Our Brochure: https://www.justacademy.co/download-brochure-for-free
Message us for more information: +91 9987184296
1 - Using Math.floor(): This method rounds down a float to the nearest integer. It simply removes the decimal part of the number.
2) Using Math.ceil(): This method rounds up a float to the nearest integer. It always rounds towards positive infinity.
3) Using Math.trunc(): This method removes the decimal part of a float without rounding the number. It just truncates the value.
4) Using parseInt(): Calling parseInt() with a float as an argument will return the integer part of the number, discarding any decimal values.
5) Using Bitwise OR operator (|): Performing a bitwise OR operation with 0 will also convert a float to an integer. It works by truncating the decimal part of the number.
6) Type Conversion: You can simply convert a float to an integer by assigning it to a variable of type int. JavaScript will automatically truncate the decimal value.
7) Using Math.floor() with conditional expression: You can combine Math.floor() with a conditional expression to round down a float to the nearest integer.
8) Using parseFloat() and parseInt(): Convert the float value to a string using parseFloat(), and then apply parseInt() to get the integer part.
9) Using the Unary Plus (+) Operator: Applying the unary plus operator to a float will convert it to a number, discarding the decimal part.
10) Using a custom rounding function: Write a custom function that implements specific rounding rules when converting a float to an integer.
11) Applying the toFixed() method: Convert the float to a string using the toFixed() method to specify the number of decimal places, then convert it to an integer.
12) Using ECMAScript 6 Math methods: Utilize newer ECMAScript 6 Math functions like Math.trunc(), Math.round(), and Math.floor() for precise float to int conversions.
13) Using the bitwise left shift (<<) operator: Shifting a float value by 0 using the bitwise left shift operator will convert it to an integer.
14) Comparison and floor technique: Compare the float value with its floor value, and depending on the comparison, return the integer part.
15) Iterative algorithm for conversion: Implement an algorithm that iterates through the digits of the float and constructs the integer value step by step.
By covering these different methods for converting float to int in JavaScript, students can gain a comprehensive understanding and choose the most suitable approach based on their requirements.
Browse our course links : https://www.justacademy.co/all-courses
To Join our FREE DEMO Session: Click Here
Contact Us for more info:
- Message us on Whatsapp: +91 9987184296
- Email id: info@justacademy.co
Best Free Full Stack Web Development Course
Best Institute For Web Development
