Cheatsheets

Condensed, scannable reference cards — commands, flags, and syntax you can copy-paste mid-task. Distilled from our full guides, built to keep open in a tab.

Cheatsheet

Terraform Cheatsheet

Condensed Terraform reference — CLI commands, flags, and HCL syntax for variables, resources, modules, and backends. Copy-paste ready.

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dbt Cheatsheet

Condensed dbt reference — CLI commands, flags, and Jinja/YAML syntax for models, tests, sources, snapshots, and macros. Copy-paste ready.

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SQL Window Functions Cheatsheet

Condensed SQL window function reference — ROW_NUMBER, RANK, LAG/LEAD, running totals, and the dedupe / top-N / month-over-month patterns you'll actually reach for.

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AWS CLI Cheatsheet

Condensed AWS CLI reference — EC2, Lambda, Elastic IP, networking, Route 53, and Auto Scaling commands with real JMESPath --query examples. Copy-paste ready.

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Spark

Apache Spark Cheatsheet

Condensed Apache Spark reference — SparkSession setup, DataFrame ops, joins, partitioning, caching, and AQE tuning. Copy-paste ready.

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NLP

NLP Cheatsheet

Condensed NLP reference — tokenization, TF-IDF, embeddings, transformer attention, and evaluation metrics with runnable Python examples.

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Python

Python Cheatsheet

Condensed Python reference — comprehensions, generators, decorators, context managers, typing, and the standard-library tools you reach for daily.

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Java

Java Cheatsheet

Condensed Java reference — streams, collections, generics, records, and concurrency with the JVM behavior notes tutorials usually skip.

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JavaScript

JavaScript Cheatsheet

Condensed JavaScript reference — closures, promises, async/await, destructuring, the event loop, and array methods with real gotchas explained.

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Angular

Angular Cheatsheet

Condensed Angular reference — components, signals, dependency injection, RxJS patterns, routing, and change detection with real gotchas.

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SQL

SQL Cheatsheet

Condensed core SQL reference — joins, subqueries vs CTEs, indexing, transactions, and normalization with the query-planner reasoning behind each.

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