In JavaScript, Function.prototype.apply() and Function.prototype.call() are methods used to invoke functions, allowing you to specify the context (this value) in which the function should run. The primary difference between the two lies in how […]
Web Development
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How to copy a folder or file from remote to local using scp
Copying a folder or file from a remote server to your local machine using scp (secure copy) is a common task in network management and data transfer. scp is a command-line utility that uses […]
How to select rows from a dataframe based on column values
Selecting rows from a DataFrame based on column values is a fundamental operation in data analysis using pandas, a popular data manipulation library in Python. This operation allows you to filter data to work […]
How to echo newline in bash prints literal \n
In bash, echoing a newline character involves understanding how to manipulate the output of the echo command to include literal special characters such as n. By default, echo interprets escape sequences like n as […]
How to format a date in javascript
Formatting a date in JavaScript can be accomplished using various methods, ranging from built-in JavaScript functions to utilizing external libraries like Moment.js or the newer Intl.DateTimeFormat API. The Date object in JavaScript provides a […]
How to add new keys to a dictionary
Adding new keys to a dictionary in Python can be done simply by assigning a value to the key you want to add. Since dictionaries in Python are mutable, you can add new key-value […]
How to convert a string to boolean in javascript
In JavaScript, converting a string to a boolean involves interpreting the content of the string to determine whether it represents a truthy or falsy value. A common approach is to use conditionals or logical […]
How to check if a string contains a substring in bash
In Bash, checking if a string contains a substring can be accomplished using various methods, each suitable for different scenarios. The most common and straightforward method is using the [[ conditional expression with the […]
How to speed up android emulator
Speeding up the Android emulator is crucial for improving development efficiency and reducing the time it takes to test applications. Various strategies can be employed to enhance the performance of the emulator, such as […]