Skip to main content
Tide is small on purpose: you can learn the whole shape of the language quickly, then start writing relations. This page covers the everyday runtime values Tide understands today (alpha).

​
Numbers

Tide supports integers and floats. 
query 40 + 2
query 10 * (3 + 4)
query 7 % 3
query 3.14 * 2

​
Booleans

Booleans show up mostly in comparisons and conditionals. 
query 5 > 3
query 2 == 3

​
Strings

Strings use double quotes. 
query "tide"

​
Lists

Lists are written with square brackets. 
query [1, 2, 3]
query ["a", "b", "c"]

​
Dictionaries

Dictionaries are written {key: value, ...}: 
query {name: "Alice", age: 30}
You’ll see lists most often with comprehensions: 
query [x * x for x in 1..5]

​
Ranges

A range is written a..b (inclusive) or a..<b (exclusive). 
query 1..5
query 1..<5
Ranges are especially useful as iterables in comprehensions.

​
A note on “types” in Tide

Tide is intentionally lightweight:
  • You don’t write type annotations.
  • You learn the language by running queries.
When in doubt, put something behind a query and see what it evaluates to.