Small games, and the code behind them.
Codesarray makes calm mobile games for Android, and short videos and articles that show how code works, one idea at a time.
Games
Open, play a round, put the phone down. No accounts, and every game plays offline.
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Blockfall
A calm 8x8 block puzzle with a daily challenge and a Play Games leaderboard.
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Paws & Perils
A cute paper cut-out roguelike with an idle RPG underneath: pick a hero, walk the trail, choose your path at every fork.
Coming to Google Play About Paws & Perils -
Synapsy
A calm daily memory game: pairs, sequences, grids and spot the change, with a three-minute Daily Workout.
Coming to Google Play About Synapsy
Videos
Coding, algorithms and data structures, one language at a time. Every example on screen is real code with its real output. Python comes first.
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Video12 min 58 s
JavaScript objects: keys, methods, spread and more
Keys and values in curly braces, the dot and brackets, methods and this, destructuring with defaults and new names, spread to copy and merge, optional chaining, Object.keys, values and entries, and why equals does not copy an object. Three programs walked through line by line with their real output.
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Video11 min 44 s
JavaScript array methods: map, filter, reduce, sort and more
What a callback is, forEach, map, filter and reduce, find, some and every, why sort puts 100 before 9 and how a comparator fixes it, toSorted and toReversed, and chaining the steps into one pipeline. Three programs walked through line by line with their real output.
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Video12 min 53 s
JavaScript arrays: index, push, pop, slice, splice and copy
An ordered list in square brackets, index from zero, length, push and pop, shift and unshift, splice and slice, why equals does not copy an array, includes and indexOf, destructuring, and why a const array can still change. Three programs walked through line by line with their real output.
Articles
The same lessons, written down, with code you can copy.
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JavaScriptBeginner
JavaScript objects: keys, methods, spread and more
Keys and values, the dot and brackets, methods and this, destructuring, spread, optional chaining, Object.keys, values and entries, and why a copy is not a second name. Three short programs with their real output.
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JavaScriptBeginner
JavaScript array methods: map, filter, reduce, sort and more
What a callback is, forEach, map, filter and reduce, find, some and every, the sort comparator gotcha, toSorted and toReversed, and chaining. Three short programs with their real output.
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JavaScriptBeginner
JavaScript arrays: index, push, pop, slice, splice and copy
An ordered list in square brackets, index from zero, length, push, pop, shift and unshift, splice and slice, why equals does not copy an array, includes and indexOf, destructuring, and why a const array can still change. Three short programs with their real output.
Work
Codesarray is created by Anand Rathore, a software developer. The day job, for more than five years, has been payment systems.
Payment gateways, settlement and reconciliation: software where every write is audited and a wrong number is somebody's money. That work covers the whole path, from gathering requirements and designing the system to building, deploying and running it.
Open to freelance and contract projects, to full-time roles, and to collaborations and sponsorship on the YouTube channel. Remote only.
- Experience
- 5+ years in fintech
- Backend
- Python, Java, Django, Spring Boot, Node.js
- Data
- PostgreSQL, MySQL, MongoDB, Kafka
- Frontend
- React, TypeScript, Tailwind CSS
- Also
- Android games in Kotlin
- Where
- India, working remotely