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About myseby

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Pick a language. Write code. Hit run. That's it.

A product of Dream Big Technologies Sdn. Bhd.

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Examples

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Click a tab to see a working snippet for each language.

orders.py Run this
# Compute revenue per category from a list of orders
orders = [
  {"item": "Laptop",  "category": "tech",  "price": 1299},
  {"item": "Headset", "category": "tech",  "price": 189},
  {"item": "Notebook","category": "office","price": 14},
  {"item": "Pen set", "category": "office","price": 26},
]
 
revenue = {}
for o in orders:
  revenue[o["category"]] = revenue.get(o["category"], 0) + o["price"]
 
print(revenue)
Output
{'tech': 1488, 'office': 40}
Done in 0.4 ms
Tools

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Python

Write and run Python in the browser.
SQL

Run queries, create tables, view results.
JS
JavaScript

Test JavaScript with no build step.
TS
TypeScript

Type-safe JavaScript, compiled in your browser.
</>
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React

Build components and see them render instantly.
Quiz

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— questions
Python

Loops, functions, data structures.

All levels 4 question types
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SQL

SELECT, JOINs, GROUP BY, aggregates.

All levels 4 question types
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JS
JavaScript

Variables, functions, closures, async.

All levels 4 question types
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TS
TypeScript

Types, interfaces, generics, narrowing.

All levels 4 question types
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HTML & CSS

Selectors, specificity, flexbox, the box model.

All levels 4 question types
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React

Hooks, props, state, JSX.

All levels 4 question types
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