Programmier-Spickzettel
Kostenlose Schnellreferenzen ohne Anmeldung für die Sprachen und Tools, die du täglich nutzt. Speichere eine, kopiere, was du brauchst, und probiere es live im Playground aus.
SQL SpickzettelEvery SQL statement, clause, and join you reach for, on one page.Excel SpickzettelEvery Excel formula, function, and shortcut you reach for, on one page.Python SpickzettelPython syntax, data structures, and standard-library staples at a glance.Pandas SpickzettelCreate, select, filter, clean, group, merge and plot DataFrames in pandas 3.NumPy SpickzettelArrays, slicing, axis math, reshaping, random numbers and linear algebra in NumPy 2.Matplotlib SpickzettelFigures and axes, every common plot type, labels, legends, subplots and styles.Scikit-learn SpickzettelThe sklearn workflow: split, preprocess, fit, predict, score, pipelines and grid search.Git SpickzettelThe Git commands you forget, from staging to rebasing to undo.Linux Commands SpickzettelNavigate, search, and manage files from the Linux command line.JavaScript SpickzettelModern JavaScript syntax, array methods, and async patterns on one page.TypeScript SpickzettelTypeScript types, interfaces, generics, and utility types at a glance.Regex SpickzettelRegular-expression tokens, quantifiers, groups, and lookarounds.HTML SpickzettelEvery HTML tag and attribute you need, grouped by what it does.CSS SpickzettelSelectors, the box model, flexbox, grid, and the properties you forget.Markdown SpickzettelMarkdown and GitHub Flavored Markdown syntax, with what each line renders.Java SpickzettelJava syntax, types, collections, and OOP keywords on one page.C++ SpickzettelC++ syntax, the STL, pointers, references, and classes at a glance.C SpickzettelC syntax, types, pointers, format specifiers, and the standard library.C# SpickzettelC# syntax, types, LINQ, collections, and OOP keywords on one page.Go SpickzettelGo syntax, slices, maps, structs, goroutines, and error handling.PHP SpickzettelPHP syntax, arrays, strings, superglobals, and the functions you forget.Rust SpickzettelRust syntax, ownership, borrowing, enums, traits, and pattern matching.Ruby SpickzettelRuby syntax, blocks, arrays, hashes, and the methods you reach for.Swift SpickzettelSwift syntax, optionals, collections, closures, and structs vs classes.Dart SpickzettelDart syntax, null safety, collections, async, and classes at a glance.Lua SpickzettelLua syntax, tables, functions, and the standard-library staples.GDScript SpickzettelGDScript syntax, types, collections, classes, and signals for Godot 4.Pygame SpickzettelThe game loop, drawing, Rect, sprites, collisions, input and sound for pygame.Luau SpickzettelLuau's type syntax plus the operators and sugar Lua doesn't have.R SpickzettelR syntax, vectors, data frames, and the data-wrangling staples.Verilog SpickzettelVerilog HDL syntax, modules, always blocks, and operators.Solidity SpickzettelSolidity syntax, types, mappings, modifiers, events, and errors.Kotlin SpickzettelKotlin syntax, null safety, when, collections, and functions.Terminal SpickzettelShell commands for navigation, files, pipes, and process control.
