37 lines
2.5 KiB
Markdown
37 lines
2.5 KiB
Markdown
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---
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id: cheat-sheet
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title: Cheat Sheet
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---
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<!--DOCUSAURUS_CODE_TABS-->
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<!--PascaLIGO-->
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|Primitive |Example|
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|--- |---|
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|Strings | `"Tezos"`|
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|Characters | `"t"`|
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|Integers | `42`, `7`|
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|Natural numbers | `42n`, `7n`|
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|Unit| `unit`|
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|Boolean|<pre><code>const hasDriversLicense: bool = False;<br/>const adult: bool = True;</code></pre> |
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|Mutez (micro tez)| `42mtz`, `7mtz` |
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|Address | `"tz1KqTpEZ7Yob7QbPE4Hy4Wo8fHG8LhKxZSx"`, `"KT1JepfBfMSqkQyf9B1ndvURghGsSB8YCLMD"`|
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|Addition |`3 + 4`, `3n + 4n`|
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|Multiplication & Division| `3 * 4`, `3n * 4n`, `10 / 5`, `10n / 5n`|
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|Modulo| `10 mod 3`|
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|Tuples| <pre><code>type name is (string * string);<br/>const winner: name = ("John", "Doe");<br/>const firstName: string = winner.0;<br/>const lastName: string = winner.1;</code></pre>|
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|Types|`type age is int`, `type name is string` |
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|Includes|```#include "library.ligo"```|
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|Functions (short form)|<pre><code>function add (const a : int ; const b : int) : int is<br/> block { skip } with a + b</code></pre>|
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|Functions (long form)|<pre><code>function add (const a : int ; const b : int) : int is<br/> block { <br/> const result: int = a + b;<br/> } with result</code></pre>|
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|Options|<pre><code>type middleName is option(string);<br/>const middleName : middleName = Some("Foo");<br/>const middleName : middleName = None;</code></pre>|
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|Assignment| ```const age: int = 5;```|
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|Assignment on an existing variable <br/></br>*⚠️ This feature is not supported at the top-level scope, you can use it e.g. within functions. Works for Records and Maps as well.*| ```age := 18;```, ```p.age := 21``` |
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|Annotations| ```("tz1KqTpEZ7Yob7QbPE4Hy4Wo8fHG8LhKxZSx" : address)```|
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|Variants|<pre><code>type action is<br/>| Increment of int<br/>| Decrement of int</code></pre>|
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|Variant *(pattern)* matching|<pre><code>const a: action = Increment(5);<br/>case a of<br/>| Increment n -> n + 1<br/>| Decrement n -> n - 1<br/>end</code></pre>|
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|Records|<pre><code>type person is record<br/> age: int ;<br/> name: string ;<br/>end<br/><br/>const john : person = record<br/> age = 18;<br/> name = "John Doe";<br/>end<br/><br/>const name: string = john.name;</code></pre>|
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|Maps|<pre><code>type prices is map(nat, tez);<br/><br/>const prices : prices = map<br/> 10n -> 60mtz;<br/> 50n -> 30mtz;<br/> 100n -> 10mtz;<br/>end<br/><br/>const price: option(tez) = prices[50n];</code></pre>|
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<!--END_DOCUSAURUS_CODE_TABS-->
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