ListMap()

Calls the given closure with every element in the given list.

The function returns a list that contains all values returned by the closure.

ListMap( list=string, closure=function, delimiter=string, includeEmptyFields=boolean, multiCharacterDelimiter=boolean, parallel=boolean, maxThreads=number );

Returns: String

Argument Description Default
list
string, required

list to iterate
closure
function, required

filter can be a function/closure that implements the following constructor

[function(any value, number index, string list, string delimiter):any].

Alias: function, callback, udf
delimiter
string, optional

delimiter used to separate the string list

,
includeEmptyFields
boolean, optional

include empty fields or not

false
multiCharacterDelimiter
boolean, optional

specifying whether the delimiters parameter specifies a multi-character delimiter.

If this parameter is true, the delimiters parameter must specify a single delimiter consisting of multiple characters.

This parameter enables the ListToArray function to convert a list such as the following to an array of color names: red:|orange:|yellow:|green:|blue:|indigo:|violet.

true
parallel
boolean, optional

execute closures parallel

false
maxThreads
number, optional

maximum number of threads executed, ignored when argument "parallel" is set to false

Alias: maxThreadCount

20

Examples

fruits = "apple,pear,orange";
	writedump(fruits);
	fruitsPlural = listMap( fruits, function(value, index, list) {
	    return value & "s";
	});
	writedump(fruitsPlural);

See also