What is functions in javascript?
A function is a set of statements that take inputs, do some specific computation, and produce output. The idea is to put some commonly or repeatedly done tasks together and make…
What is alert() in javascript?
The alert() method in JavaScript is used to display a virtual alert box. It is mostly used to give a warning message to the users. It displays an alert dialog box that…
What are conditional statement in javascript?
There are multiple different types of conditionals statement “if” statement “if else ” statement “if else if” statement “if” statement The if statement is the fundamental control statement that allows JavaScript to make…
What are the Data Types in Javascript?
A data type is a classification that specifies which type of value a variable has and what type of mathematical, relational or logical operations can be applied to it without causing…
Difference between var, let and const in JAVASCRIPT?
Var The var is a keyword that is used to declare a variable,We can declare a variable again even if it has been defined previously in the same scope. syntax…
What Are Element Access Methods In Javascript?
In javascript, we have so many methods for accessing elements but, There are five important or common methods- document.getElementByid document.getElementByTageName document.getElementByClassName document.queryselector document.queryselectorall 1. Document.getElementByid The document method getElementByid() returns an element object representing the element…
How to comment in javascript?
Javascript comments explain the code design. They can also be used to prevent the execution of a section of code if necessary. Comments are ignored while the compiler executes the…
What is JAVASCRIPT, How to add JAVASCRIPT ?
JavaScript is object-oriented programming language which is used by several websites for scripting the webpages. It is an interpreted, full-fledged programming language that enables dynamic interactivity on websites when applied…
How to convert a JSON string to an array in PHP? explain with example
In this Query, we will see How to convert a JSON string to an array in PHP, & will see its implementation through examples. There are three types of arrays…
what is json_Encode and json_Decode function in PHP?
json_Encode() Function The json_encode() function is an inbuilt function in PHP which is used to convert PHP array into JSON representation, this can return a JSON encoded string on success or false…
How to traverse an array in PHP and print?
The most common task with arrays is to do something with every element—for instance, sending mail to each element of an array of addresses, updating each file in an array…
What is the difference between array PUSH and POP? explain with example
Stack: A stack is a linear data structure in which elements can be inserted and deleted only from one side of the list, called the top. A stack follows the…
List of 20 Array functions in PHP with example
array_change_key_case — This function Changes the case of all keys in an array. array_chunk — It will split an array into chunks. array_column — It returns the values from a…
How to concatenate string in PHP?
A string is a collection of characters. It offers various types of string operators and these operators have different functionalities such as string concatenation, compare values and to perform Boolean…
How to get a random value from a PHP array? explain with example
In this query, you will get two functions to get random values out of an array in PHP. The shuffle() and array_rand() function is used to get random values out…