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List.Count

Pateikiamas sąrašo elementų skaičius.

Syntax​

List.Count(
    list as list
) as number

Remarks​

Grąžinamas konkretaus sąrašo elementų skaičius.

  • list: tikrinimui skirtas sąrašas.

Examples​

Example #1​

Rasti sąrašo reikšmių skaičių {1, 2, 3}.

List.Count({1, 2, 3})

Result:

3

Example #2​

Raskite, kiek kartų spalvų sąraše rodoma raudona spalva, nepaisant atvejų.

let
    colors = {"Red", "Blue", "GREEN", "red", "Yellow", "RED"},
    redCount = List.Count(
        List.Select(colors, each Text.Lower(_) = "red")
    )
in
    redCount

Result:

3

Example #3​

Sąraše raskite klientų, kurie įsigijo už daugiau nei už 100 USD, skaičių.

let
    customers = {
        [CustomerID = 101, CustomerName = "Alice", AmountPurchased = 150],
        [CustomerID = 102, CustomerName = "Bob", AmountPurchased = 75],
        [CustomerID = 103, CustomerName = "Carol", AmountPurchased = 50],
        [CustomerID = 104, CustomerName = "Dave", AmountPurchased = 90],
        [CustomerID = 105, CustomerName = "Eve", AmountPurchased = 120]
    },
    highValueCustomerCount = List.Count(
        List.Select(customers, each [AmountPurchased] > 100)
    )
in
    highValueCustomerCount

Result:

2

Category​

List.Information