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Concatenation is the process of combining two or more strings, lists, or other sequences into a single entity. It involves joining the elements of the sequences in a specific order to create a new sequence or string. In Python, concatenation can be performed on various types of sequences, including strings, lists, tuples, and more. The specific method or operator used for concatenation depends on the type of sequences being combined. Let's explore different approaches to concatenation in Python − String Concatenation When concatenating strings, the '+' operator or the str.join() method is commonly used. In the below example, the strings ... Read More
Concatenation is the process of combining two or more strings, lists, or other sequences into a single entity. It involves joining the elements of the sequences in a specific order to create a new sequence or string. In the context of strings, concatenation means appending one string to the end of another, resulting in a longer string. For example, if we have two strings, "Hello" and "World", concatenating them would produce the string "HelloWorld". The concatenation operator (+) or the str.join() method is commonly used for string concatenation in Python. Similarly, concatenation can be applied to other sequence types, such ... Read More
Python is an interpreted programming language. However, when we want to check whether Python is compiled or interpreted can be a bit confused. Let's dive into a detailed explanation to understand the inner workings of Python's execution model and how it combines aspects of compilation and interpretation. Interpreted languages are typically executed directly by an interpreter without a separate compilation step. In contrast, compiled languages go through a compilation process where the source code is translated into machine code or an intermediate representation before execution. However, Python's execution model is a blend of both interpretation and compilation. At a high ... Read More
Gradients displays the combination of two or more colors. Linear gradients are used to arrange two or more colors in linear formats like top to bottom. Radial gradients appear at center. Linear-Gradient The linear gradient is set using the background-image property. The angle is set as the first parameter. Here is the example − body { font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif; } div ... Read More
We can use a combination of percentage and em to specify the font-size of elements for better compatibility of font. This allows us to have uniform text across different browsers. Both percentage and em are relative measurements. Syntax The syntax of CSS font-size property is as follows. The below works for both the percentage and em units in place of value. Also, other length units can also be set − Selector { font-size: /*value*/ } Example The following example illustrate how CSS font-size property can be set. First, we have set the font using ... Read More
To customize the style for the input textbox having a placeholder, we use the :placeholder-shown pseudo-class of CSS. Placeholder text is a hint for the user to understand what is to be typed in the input text field. The following examples illustrate CSS :placeholder-shown pseudo-class. Set the border for the text field The border for the text field is set using the border-color property. Place it inside the placeholder-shown pseudo-class as shown below − input:placeholder-shown { border-color: dodgerblue; } Example Let us see the example − ... Read More
The CSS * selector is a universal selector which is used to select all elements of the HTML DOM. If you want to set a similar style for the entire document, then use the Universal selector. Syntax The syntax for CSS universal selector is as follows: Place the styles you want to set for the entire HTML document − * { /*declarations*/ } The following examples illustrate CSS universal selector − Set the margins and padding for the document To set the margins and padding settings for all the elements on the web page, set ... Read More
CSS3 provides a layout mode Flexible Box, commonly called as Flexbox. Flexbox (flexible box) is a layout mode of CSS3. Using this mode, you can easily create layouts for complex applications and web pages. It includes the container, flex items, etc. The container has the following properties − flex-direction − Set the direction of the flex items flex-wrap − Set whether the flex items should wrap or not flex-flow − It is a shorthand property for flex-wrap and flex-direction justify-content − Align the flex items align-items − Vertically align the flex items align-content − Align flex lines Set ... Read More
The CSS border property is used to define the border properties for an element. It is a shorthand for border-width, border-style and border-color. Borders for individual sides can be styled and a border-radius can also be specified. On the other hand, the CSS outline doesn’t take up space and is displayed around the border if set. It supports offset. Further, we can’t specify if individual sides should have an outline or not. By default, both borders and outlines are not displayed. Syntax The syntax for CSS border and outline property is as follows − Selector { ... Read More
Communicating between threads in Python involves exchanging data or signals between different threads of execution. There are several mechanisms available for inter-thread communication in Python, including shared data structures, synchronization primitives, and message passing. Let's explore these mechanisms in detail. Shared Data Structures Shared data structures allow threads to read and modify shared data. However, care must be taken to ensure thread safety and avoid race conditions. Some commonly used shared data structures in Python are as mentioned below. Locks (threading.Lock) − A lock provides mutual exclusion, allowing only one thread to acquire the lock at a time. It ... Read More