insert()是一個Array類方法,該方法通過在給定的索引值處插入給定元素來返回數組。
用法:Array.insert()
參數:數組
index
元件
返回:插入元素的特定索引值
範例1:
# Ruby code for insert() method
# declaring array
a = [18, 22, 33, nil, 5, 6]
# declaring array
b = [1, 4, 1, 1, 88, 9]
# declaring array
c = [18, 22, nil, nil, 50, 6]
# insert
puts "insert:#{a.insert(2, 5)}\n\n"
# insert
puts "insert:#{b.insert(2, 4, 1, 1)}\n\n"
# insert
puts "insert:#{c.insert(4, 4)}\n\n"
輸出:
insert:[18, 22, 5, 33, nil, 5, 6] insert:[1, 4, 4, 1, 1, 1, 1, 88, 9] insert:[18, 22, nil, nil, 4, 50, 6]
範例2:
# Ruby code for insert() method
# declaring array
a = ["abc", "nil", "dog"]
# declaring array
b = ["cow", nil, "dog"]
# declaring array
c = ["cat", nil, nil]
# insert
puts "insert:#{a.insert(2, 5)}\n\n"
# insert
puts "insert:#{b.insert(2, 4, 1, 1)}\n\n"
# insert
puts "insert:#{c.insert(4, 4)}\n\n"
輸出:
insert:["abc", "nil", 5, "dog"] insert:["cow", nil, 4, 1, 1, "dog"] insert:["cat", nil, nil, nil, 4]
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注:本文由純淨天空篩選整理自mayank5326大神的英文原創作品 Ruby | Array class insert() function。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。