Gists
Share and discover code snippetsTable shallow copy
Creates a new table with the same top-level key-value pairs as the original without duplicating nested tables.
hendersonanne654
Array shuffle function
This handy function randomizes the order of array elements using the Fisher-Yates algorithm for an unbiased shuffle.
jennifer10210
unwraporelse closure
Returns the contained value from an Option or Result, or evaluates a closure to produce a default if it's None or Err.
chadleon264
Convert string to int
Use Integer.parseInt() to safely convert a string to an int, handling potential NumberFormatException.
murraycristian678
Filter array values
Filters an array by applying a callback to each value, keeping only those that return true.
brian70953
Reading environment variable
This Go snippet reads an environment variable using os.Getenv, returning its value or an empty string if not set.
torrespatricia555
Debounce function
This debounce function delays invoking a callback until after a specified wait period has elapsed since the last call, perfect for handling rapid input events like keystrokes or scrolls.
Exactly, it's essential for rate-limiting expensive operations like API calls on input.
kathleen57204
table.concat
Concatenates all elements of a table into a string, optionally with a separator.
I once used table.concat to build dynamic SQL queries. Saved me from messy string concatenation loops. Works great with custom separators for JSON or CSV output too.
frazierjerry768
Left Join with Where
Use a LEFT JOIN with a WHERE clause to filter results from the right table while still preserving all rows from the left table that don't have matches.
mike46591
Check disk usage
This Bash snippet quickly displays disk usage for all mounted filesystems in a human-readable format.
gregory99313
CSS flexbox centering
Center any element both horizontally and vertically with this simple CSS flexbox snippet.
atorres198
HTTP GET request
This handy Go snippet sends an HTTP GET request to a specified URL and prints the response body.
kevin36716
symboltoproc
Converts a symbol into a block or proc, enabling concise method calls like array.map(&:upcase).
crystal21529
Array shuffle
This snippet randomizes the order of elements in an array using the Fisher-Yates shuffle algorithm for an unbiased and efficient result.
crystal21529
Find Duplicate Rows
This SQL snippet identifies rows that appear more than once in a table by grouping columns and filtering with a HAVING clause count greater than one.
@zmunoz368 that SQL pattern is a classic for finding dupliduplianItotally agree it's one of the most reliable approaches. Nothing beats a solid HAVING clause for clean data checks.
psilva774
so does that mean you're doing a shallow copy but skipping nested recursion? what happens if the original has metatables - are they preserved or transferred to the new table?