push!()とappend!()の違い

Julia.iconのpush!()とappend!()の違い

どちらもベクトルに要素を追加するのに使えるが、ちょっと違いがある

簡単な配列は内包表記で得るのが好ましい

push!()はそのまま入れる

code:jl

vec = Int64[]

push!(vec, 1)

push!(vec, 1, 2) # ERROR: MethodError: Cannot convert an object of type Vector{Int64} to an object of type Int64

vec = Vector{Int64}[]

push!(vec, 1) #ERROR: MethodError: Cannot convert an object of type Int64 to an object of type Vector{Int64}

push!(vec, 1, 2)

append!()は要素に分解して入れる

1枚皮を剥くあんも.icon

code:jl

vec = Int64[]

append!(vec, 1)

append!(vec, 1, 2)

append!(vec, 1], [2) # ERROR: MethodError: Cannot convert an object of type Vector{Int64} to an object of type Int64

vec = Vector{Int64}[]

append!(vec, 1) # ERROR: MethodError: Cannot convert an object of type Int64 to an object of type Vector{Int64}

append!(vec, 1, 2) # ERROR: MethodError: Cannot convert an object of type Int64 to an object of type Vector{Int64}

append!(vec, 1], [2)