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Base64 encoding and decoding in client-side Javascript
Are there any methods in JavaScript that could be used to encode and decode a string using base64 encoding?
13 Answers
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How to check “hasRole” in Java Code with Spring Security?
How to check user authority or permission in Java Code ? For example - I want to show or hide button for user depending on role. There are annotations like:
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Getting a random value from a JavaScript array
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It is a simple one-liner
const randomElement = array[Math.floor(Math.random() * array.length)];
Example
const months = ["January", "February", "March", "April", "May", "June", "July"];
const random = Math.floor(Math.random() * months.lengt...
Regular Expression to match only alphabetic characters
I was wondering If I could get a regular expression which will match a string that only has alphabetic characters, and that alone.
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What is a plain English explanation of “Big O” notation?
I'd prefer as little formal definition as possible and simple mathematics.
41 Answers
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Can I automatically increment the file build version when using Visual Studio?
I was just wondering how I could automatically increment the build (and version?) of my files using Visual Studio (2005).
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Adding new column to existing DataFrame in Python pandas
I have the following indexed DataFrame with named columns and rows not- continuous numbers:
24 Answers
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What does the leading semicolon in JavaScript libraries do?
In several JavaScript libraries I saw this notation at the very beginning:
6 Answers
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Best way to structure a tkinter application? [closed]
The following is the overall structure of my typical python tkinter program.
7 Answers
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When should I make explicit use of the `this` pointer?
When should I explicitly write this->member in a method of
a class?
12 Answers
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