Expression Language

Expression Language

mashinTalk’s expression language is used in compute steps, field defaults, and inline expressions. It follows JavaScript conventions.

Operators

Operator	Description	Example
+ - * /	Arithmetic	a + b * 2
%	Modulo	count % 10
== != < > <= >=	Comparison	score >= 0.8
&& || !	Logical	active && !deleted
.	Property access	input.name
[]	Index access	items[0]

String Interpolation

Use ${} inside strings:

"Hello ${input.name}, you have ${steps.count.total} items"

References

Reference	Description	Example
input.field	Machine input	input.query
steps.name.field	Step output	steps.retrieve.results
loop.name	Loop accumulator / item / index (inside loops)	loop.total
context.field	Execution context	context.user_id