In this tutorial, we will learn about the different methods or ways of finding the largest number contained inside a JavaScript array. An array is a collection of different values. We will define an array of numbers in which we will search for the largest number. There are three ways of finding the largest number in a JavaScript array that is listed below − Traversing the Whole Array Using the reduce() Method Using the Math.max() and apply() methods Traversing the Whole Array This is the easiest or the most naive approach to find the largest number in the ... Read More

In this tutorial, let’s see how to determine whether a number is odd or even using JavaScript. The first step is understanding the logic. What are even numbers? Even numbers will be exactly divisible by 2. The remainder will be zero. What are odd numbers? Odd numbers will carry a remainder when divided by 2. Using the if-else Condition and Modulo Operator "if" will check a condition, and the if block code will be executed if the condition is true. If the condition is false, else block code will be executed. The modulo operator in JavaScript returns the remainder. Syntax ... Read More

In this tutorial, we will discuss how to round up a number in JavaScript. There is a property in JavaScript under ‘Math’ named “ceil” with the help of this property we can easily round up a number in JavaScript. Ceil() is a mathematical function that computes an integer x to greater than or equal to x. If x has the decimal value zero or is a simple integer then it returns x, and if the number is a decimal number (x.yz, here yz is a non-zero number) then it returns x+1. Syntax var x = A.B var value = Math.ceil(x); ... Read More

NaN is a JavaScript property, which is Not-a-Number value. This shows it is not a legal number. Here’s the syntax −SyntaxNumber.NaNTo find out whether a number is NaN, use the Number.isNaN() or isNan() method. Here’s an example to check −ExampleLive Demo           Check                      function display() {             var a = "";             a = a + isNaN(434) + ": 434";             a = a + isNaN(-23.1) + ": -23.1";             a = a + isNaN('Hello') + ": 'Hello'";             a = a + isNaN(NaN) + ": NaN";             a = a + isNaN('') + ": ''";             a = a + isNaN(0) + ": 0";             a = a + isNaN(false) + ": false";             document.getElementById("test").innerHTML = a;          }          

To get numbers of days in a month, use the getDate() method and get the days.ExampleYou can try to run the following code to get a number of days in a month −Live Demo                 var days = function(month,year) {          return new Date(year, month, 0).getDate();       };       document.write("Days in July: "+days(7, 2012)); // July month       document.write("Days in September: "+days(9, 2012)); // September Month           OutputDays in July: 31 Days in September: 30

This tutorial teaches us to round down a number in JavaScript. The meaning of the round-down number is “returning the integer which is equal to or less than the current float number”.For example, if we round down the number 9.99, we get 9 as an output, and in the same way, for 8.01 we get 8 as an output. In simple terms, if you represent your current number in the number line, you must return the nearest integer that resides on the left side of the current number.In this tutorial, we will take a look at three different approaches to ... Read More

This tutorial will teach us how to format a number with two decimals using JavaScript. Formatting a number means rounding the number up to a specified decimal place. In JavaScript, we can apply many methods to perform the formatting. Some of them are listed as follows − The toFixed() Method Math.round() Method Math.floor() Method Math.ceil() Method The toFixed() Method The toFixed() method formats a number with a specific number of digits to the right of the decimal. it returns a string representation of the number that does not use exponential notation and has the exact number of digits after ... Read More

In this tutorial, we will learn how to perform integer division and get the remainder in JavaScript. The division operator (/) returns the quotient of its operands, where the dividend is on the left, and the divisor is on the right. When another splits one operand, the remainder operator (%) returns the residual. It always takes the dividend sign. In the operation x% y, x is known as the dividend, and y is known as the divisor. If one of the operands is NaN, x is Infinity, or y is 0, the operation returns NaN. Otherwise, the dividend x is ... Read More

To get the number of days between two dates in JavaScript, we will be understanding four different approaches with stepwise explaination and example codes. In this article, we are having two different dates and our task is to get the number of days between two dates in JavaScript. Approaches to Get the Number of Days Between Two Dates Here is a list of approaches to get the number of days between two dates in JavaScript which we will be discussing in this article with stepwise explaination and complete example codes. Get Number of Days Using ... Read More

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