Runtime

Expressions

Safe predefined expressions for visual bot set_variable node. Raw JavaScript is not executed.

How Evaluation Works

If expression is present and valid, runtime uses expression output.
If expression is missing/invalid, runtime falls back to value.
Variable tokens are resolved from captured variables (example: {{patient_name}}).

Supported Function Groups

Logic:
if eq ne gt gte lt lte and or not

Date/System:
now today date_add_days date_diff_days day_of_week year month date_format date_add_hours start_of_week end_of_week timezone_convert

Quick Examples

expression

add({{fees}}, 1000)
concat({{first_name}}, " ", {{last_name}})
if(gt({{score}}, 80), "hot", "warm")
date_add_days(today(), 1)
date_add_hours(now(), 2)
start_of_week(today())
timezone_convert(now(), "Asia/Kolkata")