lambda

Represents a Lambda, which is a function, but has less data than a UDF and performs NO scope lookups outside of itself.

Lambdas aim to be "pure" functions, by

• being deterministic (same inputs always produce the same output)
• having no side effects (no scope lookups outside of itself)
• being Unmodifiable (this requires you to pass Unmodifiable arguments to the lambda)

Lambda Methods

bxDump(label=[string], depth=[numeric], maxRows=[numeric], top=[numeric], expand=[boolean], abort=[boolean], output=[string], format=[string], showUDFs=[boolean])

Outputs the contents of a variable (simple or complex) of any type for debugging purposes to a specific output location.

The available output locations are: - buffer: The output is written to the buffer, which is the default location. If running on a web server, the output is written to the browser. - console: The output is printed to the System console. - Absolute File Path The output is written to a file with the specified absolute file path.

The output format can be either HTML or plain text.

The default format is HTML if the output location is the buffer or a web server or a file, otherwise it is plain text for the console.

Method Signature

bxDump(label=[string], depth=[numeric], maxRows=[numeric], top=[numeric], expand=[boolean], abort=[boolean], output=[string], format=[string], showUDFs=[boolean])

Arguments

Argument	Type	Required	Description	Default
label	string	false	A custom label to display above the dump (Only in HTML output)
depth	numeric	false	The recursion depth to display when dumping nested collections. 1-based: -1 (default) is unlimited, 0 shows nothing, 1 shows the top level with no recursion, 2 recurses once, etc. (Only in HTML output)
maxRows	numeric	false	The maximum number of keys/rows/items to display per level of a collection, array, or query. 1-based: -1 (default) is unlimited, 0 shows nothing, 1 shows a single row, etc. (Only in HTML output)
top	numeric	false	Deprecated: use maxRows instead. When maxRows is not also passed, top's value is used as maxRows. Kept for backwards compatibility with existing BoxLang code. (Only in HTML output)
expand	boolean	false	Whether to expand the dump. Be default, we try to expand as much as possible. (Only in HTML output)	true
abort	boolean	false	Whether to do a hard abort the request after dumping. Default is false	false
output	string	false	The output format which can be "buffer", "console", or "{absolute file path}". The default is "buffer".
format	string	false	The format of the output to a filename. Can be "html" or "text". The default is according to the output location.
showUDFs	boolean	false	Show UDFs or not. Default is true. (Only in HTML output)	true