In JavaScript, there are several ways to check if a string contains a substring. Here are … How to check whether a string contains a substring in JavaScript?Read more
Author: Andy
How do closures work in JavaScript?
In JavaScript, closures are a powerful and fundamental concept that allows functions to “remember” and access … How do closures work in JavaScript?Read more
How to remove a property from a JavaScript object?
To remove a property from a JavaScript object, you can use the delete operator or create … How to remove a property from a JavaScript object?Read more
How to use extern to share variables between source files in C/C++?
To share variables between source files in C/C++ using the extern keyword, follow these steps: Step-by-Step … How to use extern to share variables between source files in C/C++?Read more
How to filter Pandas dataframe using ‘in’ and ‘not in’ like in SQL?
To filter a pandas DataFrame using “IN” and “NOT IN” logic (similar to SQL), you can … How to filter Pandas dataframe using ‘in’ and ‘not in’ like in SQL?Read more
How to create a new column where the values are selected based on an existing column?
To create a new column in a pandas DataFrame where values are conditionally derived from an … How to create a new column where the values are selected based on an existing column?Read more
How to pivot a dataframe in pandas ?
To pivot a DataFrame in pandas, you can use the pivot(), pivot_table(), stack(), unstack(), or melt() … How to pivot a dataframe in pandas ?Read more
What are metaclasses in Python?
In Python, metaclasses are classes that create other classes. They act as blueprints for class creation, … What are metaclasses in Python?Read more
What does “use strict” do in JavaScript?
The “use strict” directive in JavaScript enables strict mode, a stricter variant of JavaScript introduced in … What does “use strict” do in JavaScript?Read more
Is there a ternary conditional operator in Python?
Yes, Python has a ternary conditional operator (often called a “ternary expression”) that allows you to … Is there a ternary conditional operator in Python?Read more