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reorganize module

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Timur Gordon
2025-04-04 08:28:07 +02:00
parent 1ea37e2e7f
commit 939b6b4e57
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_archive/rhai_engine/rhaibook/appendix/operators.md Normal file
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Operators and Symbols
=====================
{{#include ../links.md}}
Operators
---------
| Operator | Description | Binary? | Binding direction |
| :------------------------------------------------------------------------------------------: | -------------------------------------- | :--------: | :---------------: |
| `+` | add | yes | left |
| `-` | 1) subtract<br/>2) negative (prefix) | yes<br/>no | left<br/>right |
| `*` | multiply | yes | left |
| `/` | divide | yes | left |
| `%` | modulo | yes | left |
| `**` | power/exponentiation | yes | right |
| `>>` | right bit-shift | yes | left |
| `<<` | left bit-shift | yes | left |
| `&` | 1) bit-wise _AND_<br/>2) boolean _AND_ | yes | left |
| <code>\|</code> | 1) bit-wise _OR_<br/>2) boolean _OR_ | yes | left |
| `^` | 1) bit-wise _XOR_<br/>2) boolean _XOR_ | yes | left |
| `=`, `+=`, `-=`, `*=`, `/=`,<br/>`**=`, `%=`, `<<=`, `>>=`, `&=`,<br/><code>\|=</code>, `^=` | assignments | yes | n/a |
| `==` | equals to | yes | left |
| `!=` | not equals to | yes | left |
| `>` | greater than | yes | left |
| `>=` | greater than or equals to | yes | left |
| `<` | less than | yes | left |
| `<=` | less than or equals to | yes | left |
| `&&` | boolean _AND_ (short-circuits) | yes | left |
| <code>\|\|</code> | boolean _OR_ (short-circuits) | yes | left |
| `??` | null-coalesce (short-circuits) | yes | left |
| `!` | boolean _NOT_ | **no** | right |
| `[` ... `]`, `?[` ... `]` | indexing | yes | left |
| `.`, `?.` | 1) property access<br/>2) method call | yes | left |
| `..` | exclusive range | yes | left |
| `..=` | inclusive range | yes | left |
Symbols and Patterns
--------------------
| Symbol | Name | Description |
| :---------------------------------: | ---------------------------------- | ------------------------------------- |
| `_` | underscore | default `switch` case |
| `;` | semicolon | statement separator |
| `,` | comma | list separator |
| `:` | colon | [object map] property value separator |
| `::` | path | module path separator |
| `#{` ... `}` | hash map | [object map] literal |
| `"` ... `"` | double quote | [string] |
| `` ` `` ... `` ` `` | back-tick | multi-line literal [string] |
| `'` ... `'` | single quote | [character] |
| `\` | 1) escape<br/>2) line continuation | escape character literal |
| `()` | unit | null value |
| `(` ... `)` | parentheses | expression grouping |
| `{` ... `}` | braces | block statement |
| <code>\|</code> ... <code>\|</code> | pipes | closure |
| `[` ... `]` | brackets | [array] literal |
| `!` | bang | function call in calling scope |
| `=>` | double arrow | `switch` expression case separator |
| `//` | comment | line comment |
| `///` | doc-comment | line [doc-comment] |
| `//!` | module doc | [module documentation][comments] |
| `/*` ... `*/` | comment | block comment |
| `/**` ... `*/` | doc-comment | block [doc-comment] |
| `(*` ... `*)` | comment | _reserved_ |
| `#!` | shebang | _reserved_ |
| `++` | increment | _reserved_ |
| `--` | decrement | _reserved_ |
| `...` | rest | _reserved_ |
| `~` | tilde | _reserved_ |
| `!.` | | _reserved_ |
| `?` | question | _reserved_ |
| `#` | hash | _reserved_ |
| `@` | at | _reserved_ |
| `$` | dollar | _reserved_ |
| `->` | arrow | _reserved_ |
| `<-` | left arrow | _reserved_ |
| <code><\|</code> | left triangle | _reserved_ |
| <code>\|></code> | right triangle | _reserved_ |
| `===` | strict equals to | _reserved_ |
| `!==` | strict not equals to | _reserved_ |
| `:=` | assignment | _reserved_ |
| `:;` | typo to `::` | _reserved_ |
| `::<` ... `>` | turbofish | _reserved_ |