2022年10月4日
30秒学会 JavaScript 片段 – Array without last element
Returns all the elements of an array except the last one. Use Array.prototype.slice() to return all ...
30秒学会代码片段
2022年10月2日
30秒学会 JavaScript 片段 – Value frequencies
Creates an object with the unique values of an array as keys and their frequencies as the values. Us...
2022年10月2日
30秒学会 JavaScript 片段 – How can I detect if Caps Lock is on with JavaScript?
Oftentimes, especially when creating password inputs, you need to check if the Caps Lock key is on a...
2022年10月1日
30秒学会 Python 片段 – Merge dictionaries
Merges two or more dictionaries. Create a new dict and loop over dicts, using dictionary.update() to...
2022年9月28日
30秒学会 JavaScript 片段 – What are JavaScript closures?
Closures are a JavaScript concept that comes up quite a lot, especially during interviews. While the...
2022年9月25日
30秒学会 JavaScript 片段 – How can I add minutes, hours or days to a JavaScript date?
You can’t get too far in web development without stumbling upon a situation where you have to ...
2022年9月24日
30秒学会 Python 片段 – Date range
Creates a list of dates between start (inclusive) and end (not inclusive). Use datetime.timedelta.da...
2022年9月22日
30秒学会 JavaScript 片段 – Create a static file server with Node.js
A simple static file server One of the simplest beginner backend projects you can create is a static...
2022年9月21日
30秒学会 JavaScript 片段 – Count substrings of string
Counts the occurrences of a substring in a given string. Use Array.prototype.indexOf() to look for s...
2022年9月19日
30秒学会 JavaScript 片段 – How can I check if a string starts or ends with a substring of another string using JavaScript?
While working on a project a little while back, I came across a problem that made me stop and think....