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In Python, the // is the double slash operator i.e. Floor Divison. The // operator is used to perform division that rounds the result down to the nearest integer. The usage of the // operator is quite easy. We will also compare the results with single slash division. Let us first see the syntax: Syntax of // (double slash) Operator The a and b are 1st and 2nd number: a // b Example of // (double slash) Operator Let us now see an example to implement the double slash operator in Python - a = 37 b = 11 ... Read More
In this tutorial, we will learn how to include JavaScript in HTML Documents. To include JavaScript in HTML Documents, use the tag. JavaScript can be implemented using JavaScript statements that are placed within the ... . You can place the tags, containing your JavaScript, anywhere within your web page, but it is normally recommended that you should keep it within the tags. We will discuss the following three approaches to include JavaScript in HTML documents − Embedding code (within head or body) Inline Code (inside any element) External file (outside the HTML file) By Embedding ... Read More
To serialize and de-serialize a Python object structure, we have the Pickle module in Python. The pickle module implements binary protocols for serializing and de-serializing a Python object structure. Pickling is the process through which a Python object hierarchy is converted into a byte stream. To serialize an object hierarchy, you simply call the dumps() function. Unpickling is the inverse operation. A byte stream from a binary file or bytes-like object is converted back into an object hierarchy. To de-serialize a data stream, you call the loads() function. Pickling and unpickling are alternatively known as serialization. What can be pickled ... Read More
In today's world, almost every website uses JavaScript. Web applications are becoming more complex and more user-interactive, and this has caused performance issues. It results in a poor user experience, which is not desirable for any web application. Different factors cause poor performance, long loading times, and long response times. In this tutorial, we will discuss all of these factors and how to resolve this issue and improve the performance of JavaScript. Light and Compact Code The first thing to improve the performance of JavaScript is to write light and compact code. The JavaScript code can have multiple modules and ... Read More
In this article, we will learn about the advantages of a Numpy array with a Nested List in Python. The Numpy array definitely has advantages over a Nested. Let’s see the reasons − The array in Numpy executes faster than a Nested List. A Nested List consumes more memory than a Nested List. Numpy Array NumPy is an N-dimensional array type called ndarray. It describes the collection of items of the same type. Items in the collection can be accessed using a zero-based index. Every item in an ndarray takes the same size of block in the memory. ... Read More
In this tutorial, we will learn how to handle tabs, line breaks, and whitespace in a text in JavaScript. To handle tabs, line breaks, and whitespace in text in JavaScript, we can use the whiteSpace property. This property has seven attributes − normal nowrap pre pre-line pre-wrap initial inherit Generally, in HTML we use the entity for multiple spaces and the tag to get line break. But in JavaScript, we use different attribute properties (mainly the normal and pre) of white-space properties to handle the tabs, line breaks, and multiple whitespaces. The details of these two ... Read More
In this tutorial, we will learn how to play a multimedia file using JavaScript. The multimedia file is the audio and video files. The multimedia files can be of different formats. wav and mp3 are two examples of audio file formats, whereas mp4 and mkv are examples of video file formats. In HTML, multimedia files can be shown easily using different tags. We use the video tag for showing a video, and for audio, we use the audio tag. These two tags are quite similar, and many attributes are the same in both tags. The "src" attribute defines the path ... Read More
Python is a general-purpose interpreted, interactive, object-oriented, and high-level programming language. Python is processed at runtime by the interpreter. You do not need to compile your program before executing it. This is similar to PERL and PHP. Steps of Execution Step1 − A Python source code is written by the coder. File extension: .py Step 2 − The Python source code a coder writes is compiled into python bytecode. In this process, a file with the extension .pyc gets created. Step 3 − The Virtual Machine executes the .pyc extension file. Consider the Virtual Machine is the runtime engine of ... Read More
The slice operator is used to slice a string. The slice() function can also be use for the same purpose. We will work around the slice operator with some examples What is Slicing? Slicing in Python gets a sub-string from a string. The slicing range is set as parameters i.e. start, stop and step Syntax Let us see the syntax # slicing from index start to index stop-1 arr[start:stop] # slicing from index start to the end arr[start:] # slicing from the beginning to index stop - 1 arr[:stop] # slicing from the index start to index ... Read More
In this tutorial, we will learn how to pass JavaScript Variables with AJAX calls. AJAX stands for Asynchronous JavaScript and XML. As the name suggests, it performs asynchronous operations on your web page. AJAX communicates with the server by HTTP requests and gets the required data as an HTTP response. We can control these HTTP requests by passing the JavaScript variables with AJAX calls. There are various types of HTTP requests, and in this tutorial, we will discuss the most popular HTTP requests by using AJAX and also pass JavaScript variables with it. Pass JavaScript Variables with “GET” AJAX calls ... Read More