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A hashtable is a data structure that consists of a collection of key-value pairs. The hashtable collection uses a hash function to compute the hash code of the key. A hashtable can also be defined as a non-generic collection of key-value pairs. The hash code of each key is computed using a hash function and is stored in a different bucket internally. At the time of accessing values, this hash code is matched with that of the specified key, and results are returned. Unlike other data structures like the stack, queue, ArrayList, etc. that store single values, hashtable collection stores ... Read More
A Hashtable is a non-generic collection of key-value pairs that are arranged as per the hash code of the key. A Hashtable is used to create a collection that uses a hash table for storage. The hashtable optimizes the lookup by calculating the hash code of each key and stores it internally into a basket. When we access the particular value from the hashtable, this hashcode is matched with the specified key. This hashtable collection is defined in the System.Collections namespace of C#. The class that represents the hashtable collection is the “Hashtable” class. This class provides constructors, methods, and ... Read More
The hashtable collection in C# is a non-generic collection of elements. Each element of the hashtable is represented as a key-value pair. The keys of the hashtable are non-null and unique. The values can be duplicated and/or null. The Hashtable class of C# Systems.The collections interface is the representation of a hashtable collection. This class provides various constructors, methods, and properties to manipulate the hashtable collection. We can also convert hashtables into other collections like arrays, ArrayList, etc., and also to a string representation. In this article, let’s discuss how we can convert a hashtable collection into a string. How ... Read More
The hashtable collection in C# is a non-generic collection of items represented as key-value pairs. Each key is a unique, non-null element. The value on the other hand can be duplicated and/or null. The Hashtable class in C# represents the hashtable collection. This class provides the relevant methods to create objects, alter items in the collection, etc. The hashtable collection can be expressed as an array or ArrayList in C#. In this article, let’s discuss how we can convert a hashtable collection into an array. How to Convert Hashtable into an Array? To convert the hashtable into an array, the ... Read More
To call a function on click event in JavaScript, you can use either the addEventListener method or the onclick event attribute. The addEventListener method is a general way to attach an event handler to a DOM element, and it allows you to specify the event and the callback function to be called when the event occurs. The onclick attribute is a specific event attribute that allows you to specify a JavaScript function to be called when the element is clicked. Both methods allow you to specify a function to be called when the element is clicked, but the addEventListener method ... Read More
JavaScript is the core of any website, it adds functionalities to a website, make the overall website responsive. But in JavaScript, it is hard to select an element and add different functions like toggling an element, fade-in an element, and more. jQuery provides many methods for making it easy to add functionality to a website like fade-in, fade-out, hide, show, toggle, etc. Concatenating jQuery and JavaScript makes it easy to use the jQuery function in JavaScript function whenever needed, instead of calling them separately. Syntax To call a jQuery function with a JavaScript function, you can use the following syntax ... Read More
We have given a number and the task is to calculate the nth root of that number using JavaScript. We have multiple ways to achieve this, some of which are the following. Using Math.pow() Method Using Logarithm To get the nth root of a number firstly let’s understand whose root we can calculate and which number’s root we cannot calculate. If the number is positive and the root is also even then we will get two solutions. E.g − 2nd root of 16 is +4 and -4, similarly 4th root of 16 is +2 and -2 If ... Read More
To attach one or more drop shadows to a box with JavaScript, you can use the box-shadow style property. You can specify the shadow's offset, blur radius, spread radius, and color by passing values for these properties in the box-shadow property. Syntax Following is the syntax to add one or more drop shadows to the box with JavaScript − box.style.boxShadow = "offset-x offset-y blur-radius spread-radius color"; Here the box.style.boxShadow property in JavaScript allows you to add one or more drop shadows to a box element. It takes the following parameters offset-x − This is the horizontal offset of ... Read More
With JavaScript, you can easily access/ read cookies with the “document.cookie” property. Reading a cookie is just as simple as writing one because of the value of the document.cookie object is the cookie. The document.cookie string will keep a list of name=value pairs separated by semicolons, where the name is the name of a cookie and value is its string value. In this article, we will learn how to access cookies using document object in JavaScript. Syntax document.cookie Return value − All the cookies are saved in the browser in a single string. The document.cookie string will keep ... Read More
The Unary Negation Operator first converts the operand into a number, and after that it negates. It operates on a single operand. It returns the negation of the operand. A boolean operand is converted to 0 or 1, and then negation is done. Similarly, a number with a base other than decimal is first converted to base 10, then the negation is computed. Syntax The following syntax will show you how you can use the unary negation operator to negate the value of a number − -x Here unary operator (-) negates x. Let us understand the application of ... Read More