How to find the average of an array of numbers in JavaScript
Calculate array average by dividing the sum by length using reduce() and array length for statistical computations in JavaScript.
How to sum an array of numbers in JavaScript
Use reduce() method to sum array elements efficiently, or loop through values for calculating totals in JavaScript.
How to check if a number is prime in JavaScript
Check if a number is prime by testing divisibility up to its square root for efficient prime number validation in JavaScript.
How to convert degrees to radians in JavaScript
Multiply degrees by π/180 to convert to radians, or use the formula degrees * (Math.PI / 180) in JavaScript.
How to convert radians to degrees in JavaScript
Multiply radians by 180/π to convert to degrees, or use the formula radians * (180 / Math.PI) in JavaScript.
How to raise a number to a power in JavaScript
Use Math.pow() or the exponentiation operator (**) to raise numbers to powers efficiently in JavaScript.
How to get the square root of a number in JavaScript
Use Math.sqrt() to calculate the square root of a number efficiently in JavaScript for mathematical computations.
How to get the absolute value of a number in JavaScript
Use Math.abs() to get the absolute value of a number, removing the sign and returning the magnitude in JavaScript.
How to calculate the factorial of a number in JavaScript
Use recursion or iteration to calculate the factorial of a number efficiently in JavaScript for mathematical computations.
How to format a number as currency in JavaScript
Use Intl.NumberFormat to format numbers as currency with proper locale and symbol handling in JavaScript.
How to convert a number to a string in JavaScript
Use toString() method or String() constructor to convert numbers to string format efficiently in JavaScript.
How to check if a number is odd in JavaScript
Use the modulo operator (%) to check if a number is odd by testing if it has a remainder when divided by 2 in JavaScript.
How to check if a number is even in JavaScript
Use the modulo operator (%) to check if a number is even by testing if it is divisible by 2 in JavaScript.
How to check if a value is NaN in JavaScript
Use Number.isNaN() to reliably check if a value is NaN (Not a Number) in JavaScript with proper type safety.
How to convert a string to a number in JavaScript
Use Number() constructor or unary plus operator to convert strings to numbers efficiently in JavaScript.
How to generate a random integer in JavaScript
Use Math.floor() with Math.random() to generate random whole numbers within a specified range in JavaScript.
How to generate a random number in JavaScript
Use Math.random() to generate random floating-point numbers between 0 and 1 in JavaScript for various applications.
How to round a number in JavaScript
Use Math.round() to round numbers to the nearest integer or combine with multiplication for decimal precision in JavaScript.
How to check if a string is a palindrome in JavaScript
Use string reversal and comparison to efficiently check if a string reads the same forwards and backwards in JavaScript.
How to decode a base64 string in JavaScript
Use atob() function to decode base64-encoded strings back to their original text format in JavaScript efficiently.
How to encode a string in base64 in JavaScript
Use btoa() function to encode strings into base64 format in JavaScript for data transmission and storage.
How to extract numbers from a string in JavaScript
Use match() with regular expressions to efficiently extract all numbers from a string in JavaScript.
How to count characters in a string in JavaScript
Use the length property to count the number of characters in a JavaScript string efficiently and accurately.
How to repeat a string multiple times in JavaScript
Use the repeat() method to duplicate a string a specified number of times in JavaScript with modern ES6 syntax.
How to check if a string is empty in JavaScript
Use length property or strict equality to efficiently check if a string is empty in JavaScript with reliable methods.
How to remove special characters from a string in JavaScript
Use replace() with regular expressions to efficiently remove special characters from strings in JavaScript.
How to convert a string to lowercase in JavaScript
Use the toLowerCase() method to convert all characters in a string to lowercase letters in JavaScript efficiently.
How to convert a string to uppercase in JavaScript
Use the toUpperCase() method to convert all characters in a string to uppercase letters in JavaScript efficiently.
How to check if a string ends with another string in JavaScript
Use the endsWith() method to efficiently check if a string concludes with a specific substring in JavaScript.
How to check if a string starts with another string in JavaScript
Use the startsWith() method to efficiently check if a string begins with a specific substring in JavaScript.
