Then, we apply the to_h method after to_a to convert the array into a hash.Code:puts %w[key1 value1 key2 value2].each_slice(2).to_a.to_h In this code, the subsequent to_a call converts these subarrays into a nested array. Building on this, we apply to_h, a method specifi...
Suppose you have an array you wish to convert to a string where the key of the hash is the array element, and the value of the hash is the array’s element + 10. To do this, we can use the each method to iterate each item in the array and convert it into a string. var =[1...
# Program in ruby to convert an array into a hash using Array#each_slice and Hash::[] constructor# Define an array with elements representing key-value pairsarray = [:a,1,:b,2,:c,3]# Iterate over the array in pairs using each_slice(2), then flatten the resulting arrays# and conve...
Ruby Array exercises, Practice and Solution: Write a Ruby program to convert an array into an index hash.
您的方法是正确的，可以将Enumerable#each_with_object与Enumerator#with_index结合使用：...
您的方法是正确的，可以将Enumerable#each_with_object与Enumerator#with_index结合使用：...
1 ruby 散列表 报 can't convert Hash into Integer我想建立一个散列表,但是不会用.irb(main):011:0> hashtest=['a'=>'c','b'=>'d','c'=>'e','d'=>'f']=> [{"a"=>"c", "b"=>"d", "c"=>"e", "d"=>"f"}]irb(main):012:0> hashtest['a']TypeError: can't convert ...
使用Array::new作为新数组“构建器”，Enumerable#each_with_object作为每个项的“构建器”...
使用Array::new作为新数组“构建器”，Enumerable#each_with_object作为每个项的“构建器”...