Origami is a dialect of JavaScript expressions and closely follows JavaScript operator precedence.
Origami introduces some operators of its own, listed here alongside the standard JavaScript operators. Operators are listed in order from highest precedence to lowest precedence.
| Operator | Example | Associativity |
|---|---|---|
| Group | (x) |
n/a |
| Path | x/y/z |
left-to-right |
| Member access | x.y |
left-to-right |
| Computed member access | x[y] |
n/a |
| Function call | x(y) |
n/a |
| Tagged template | x`y` |
n/a |
| Logical NOT | !x |
n/a |
| Bitwise NOT | ~x |
n/a |
| Unary plus | +x |
n/a |
| Unary minus | -x |
n/a |
| Exponentiation | x ** y |
right-to-left |
| Multiplication | x * y |
left-to-right |
| Division | x / y |
left-to-right |
| Remainder | x % y |
left-to-right |
| Addition | x + y |
left-to-right |
| Subtraction | x - y |
left-to-right |
| Left shift | x << y |
left-to-right |
| Right shift | x >> y |
left-to-right |
| Unsigned right shift | x >>> y |
left-to-right |
| Less than | x < y |
left-to-right |
| Less than or equal | x <= y |
left-to-right |
| Greater than | x > y |
left-to-right |
| Greater than or equal | x >= y |
left-to-right |
| Equality | x == y |
left-to-right |
| Inequality | x != y |
left-to-right |
| Strict equality | x === y |
left-to-right |
| Strict inequality | x !== y |
left-to-right |
| Logical AND | x && y |
left-to-right |
| Logical OR | x || y |
left-to-right |
| Nullish coalescing | x ?? y |
left-to-right |
| Conditional (ternary) | x ? y : z |
right-to-left |
| Arrow | (x) => y |
right-to-left |
| Implicit parentheses | x y |
right-to-left |
| Shorthand function | =x |
right-to-left |
| Pipe | x -> y |
left-to-right |
| Spread | ...x |
n/a |
| Comma | x, y |
left-to-right |
An operator’s precedence determines how the Origami parser handles expressions that have more than one possible interpretation.
Example: a -> b => c could be interpreted as a -> (b => c) or (a -> b) => c. Origami uses the former interpretation, because the arrow operator has a higher precedence than Origami pipe operator.