if(number>0){// Positive}else{// Negative} versus if(Math.sign(number)>0){// Positive}else{// Negative} Indeed, if you're just checking the boolean status, then I'd just use the comparative operator instead of usingMath.sign. But whereMath.signshines is it returns a number value. ...
Enter a number: 5 The number is odd. Also Read: Javascript Program to Check if a number is Positive, Negative, or Zero JavaScript Program to Check if a Number is Float or IntegerBefore we wrap up, let’s put your knowledge of Javascript Program to Check if a Number is Odd or Even...
Check if Number is Multiple of 3 or 7Write a JavaScript program to check whether a given positive number is a multiple of 3 or 7.This JavaScript program checks if a given positive number is a multiple of either 3 or 7. It uses the modulo operator (%) to determine if the number is ...
Write a JavaScript program to check if a given positive number is a power of four or not using bit manipulation. The expression n & (n-1) will unset the rightmost set bit of a number. If the number is a power of 2, it has only a 1-bit set, and n & (n-1) will unset the ...
Now we first check if the number is greater than 0, then convert the result to a boolean and negate it. If the number is greater than 0, the expression returns true and when the logical NOT (!) operator is applied, false is returned, so the else block runs. The if block runs only...
In this article, we will see how to check if a number is between two values in JavaScript. We will be using the comparison operator and the logical operators to achieve this.We can use these operators either with the if statement or the ternary operator ?: in JavaScript....
Example: Check Prime Number // program to check if a number is prime or not // take input from the user const number = parseInt(prompt("Enter a positive number: ")); let isPrime = true; // check if number is equal to 1 if (number === 1) { console.log("1 is neither prime ...
Use parseFloat() to try to convert n to a number. Use !Number.isNaN() to check if num is a number.
JavaScript check if variable exists (is definedinitialized) - We can use typeof operator to check the variable is defined or not.
Check whether a number is odd or even using the modulo (%) operator. Return true if the number is odd, false if the number is even.