List Expression in Appsheet feature in Appy Pie.

List Expression in Appsheet feature in Appy Pie.

List Expression :

LIST

A new list that contains items with the given values is created using the LIST function.

Syntax

LIST( [value...] )

Example

LIST('list_element1', 'list_element2', 'list_element_n')
LIST(7, 4, 95, 8 ) produces a List containing the Four Number values.
LIST([Office], [Work], [Mobile]) produces a List of the Phone values in the given columns of the current row.

Arguments

[value...] (any): A series of zero or more values with commas separating every value.
Note: Ensure that every value is of comparable type (e.g., all numeric, or all textual).

Return Value

A List consisting of the given values.


SPLIT

The SPLIT function splits the condition from the specified delimiter and returns the value.

Syntax

SPLIT(text-to-split, delimiter)

Example

SPLIT([Order ID], "value_1")
SPLIT("John Make", " ") produces a two-item list containing John and Make.
SPLIT(LIST("Mango, Apricot, Grapes"), ", ") produces a three-item list: Mango, Apricot, Grapes.

Arguments

  • Text: This can be of any textual type and is to be split into parts.

  • Delimiter (any textual type) between parts.


Return Value

This function returns a list of Text values, where the parts of text occur around delimiter.

Learn more about SPLIT


SORT

A new list containing values of the existing list in the sorted order either ascending/first-to-last/low-to-high or descending/last-to-first/high-to-low order is accomplished using the SORT function.

Syntax

SORT('list-to-sort', 'from-high-to-low?')
Example
SORT(LIST('list-column_1', 'list-column_2', 'column_n'), 1)

Return Value

A new list with items of the list in sorted order. The result will be sorted in descending order if sorted from high-to-low, and the result will be in ascending order if sorted from low-to-high.

Learn more about SORT


ANY

Any random value from the list is returned by the ANY function.

Syntax

ANY(list-to-choose-one-value-from)

Example

ANY(LIST(value1, value2))

Column Value

A single column value from any set of rows:

ANY(SELECT(Order[Price], ([Color] = "Red")))

1.    SELECT(Order[Price], ...) returns values in the Price column from rows in the Order table that meets the selection criteria.
2.    [Color] = "Red" limits the selection to only those rows with a Color column value of exactly Red.
3.    ANY(...) gives one arbitrary value from the list of column values.

Arguments

A List of any type

Return Value

If the list is constructed (e.g., using LIST()), the first item from the list is returned. If the list is a generated list, an arbitrary item is returned and if the list is empty, blank is returned.


TOP

The top value from the list depending upon the specified parameters is returned by the TOP function.

Syntax

TOP(list, number-of-top-elements-to-take)

Example

TOP(LIST(value1, value2), 1)
TOP(LIST("Red", "Blue", "Green"), 2) returns a list of 2 items: Red , Blue
TOP({"Red", "pink", "Green"}, 4) returns a list of 3 items: Red , Pink , Green

Lowest Values

The 5 earliest employees hire dates:
TOP(SORT(Employees[Hire Date]), 5)

1.    Employees[Hire Date] extract the list of all values from the Hire Date column of the Employees table.
2.    SORT(...) sets the list of dates in ascending/low-to-high order as per the default sort order with the earliest dates at the beginning.
3.    TOP(..., 5) provides the first five top values from the sorted list that is the five earliest hire dates.

Arguments

  • List of any type

  • Number of item values from the list to be returned.


Return Value

This function will return a list containing the values of the initial items of the list. The return list will only contain as many items in the list, if the number of item values to take is greater than the number of items in the list. The return list will be empty if the number of item values is less than 1.


 

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