Cykly for

Intermediate Julia

Anthony Markham

Quantitative Developer

Přehled kurzu

for variable in iterable
    expression
end

shopping_list = ["Apples", "Bread", "Carrots", "Strawberries"]

println(shopping_list)

["Apples", "Bread", "Carrots", "Strawberries"]

println(shopping_list[1])
println(shopping_list[2])
println(shopping_list[3])
println(shopping_list[4])

for item in shopping_list
    println(item)
end

Apples
Bread
Carrots
Strawberries

for item in shopping_list
    println(item)
    # první iterace, item = 'Apples'
end

Apples

for item in shopping_list
    println(item)
    # druhá iterace, item = 'Bread'
end

Apples
Bread

for item in shopping_list
    println(item)
    # třetí iterace, item = 'Carrots'
end

Apples
Bread
Carrots

for item in shopping_list
    println(item)
    # čtvrtá iterace, item = 'Strawberries'
end

Apples
Bread
Carrots
Strawberries

Funkce enumerate vrací při iteraci přes datovou strukturu dvojici index–hodnota.

for (index, item) in enumerate(shopping_list)
    println(index, " ", item)
end

1Apples
2Bread
3Carrots
4Strawberries

shopping_list = ["Apples", "Bread", "Carrots", "Strawberries"]

Intermediate Julia