This document describes the expression syntax used in the application.

• value - Current field value
• val - a wrapped value in a monad that introduces additional operations
• field['fieldname'] - Access other fields
• field.fieldname - Alternative syntax for accessing fields

- == - Equal - === - Strict equal - != - Not equal - !== - Strict not equal - < - Less than - <= - Less than or equal - > - Greater than - >= - Greater than or equal

- and - Logical AND - or - Logical OR - not - Logical NOT

1. Can be used with parentheses to negate complex expressions
2. Example: not (value contains '1970') - Negates the result of the contains operation
3. ! important note: always use parentheses with not, as it may lead to unexpected results!

- ~ - String concatenation - contains - String contains - matches - Regular expression matching

- condition ? true_value : false_value - Ternary conditional

• val.upper() - Convert to uppercase
• val.lower() - Convert to lowercase
• val.split(delimiter) - Split string into array
• val.merge(delimiter) - Join array elements with delimiter
• val.eq(value) - Compare equality
• val.from(value) - Transform value
• val.value() - Return the final value from monad

• array.value()[index] - Access array element by index
• array.last() - Get last element of array

• time.format(datetime, format, [timezone]) - Format datetime
  • Example: time.format('2024-08-27T15:25:02.001Z', 'H:i')
  • Example with timezone: time.format('2024-08-27T15:25:02.001Z', 'H:i', 'Europe/Warsaw')

• time.formatSeconds(seconds, format, [default]) - Format seconds as duration
  • Example: time.formatSeconds(value + 220, 'M:S')
  • Formats: 'M:S', 'S', 's'

val.upper()                                  // Convert to uppercase
val.split('/').merge('|').upper()            // Split, join with new delimiter, uppercase

field['null_val'] === null ? 'less 0' : 'more than 0'
value !== null and not (value contains '1970') ? time.format(value, 'U') * 1000 : null

time.formatSeconds(value + 220, 'M:S')       // Format seconds as minutes:seconds
time.format('2024-08-27T15:25:02.001Z', 'H:i', 'Europe/Warsaw')  // Format with timezone

field['field2']                              // Access other field
field.all_tmp.b_string                       // Nested field access
field.all_tmp.wrong ?? ''                    // With null coalescing