get element of an array inside another array
let array=[[1,2,3],
["apple","mango","grapes"],
[true true false]]
//to get apple ===== arrayName[class][subclass]
console.log(array[1][0])get element of an array inside another array
let array=[[1,2,3],
["apple","mango","grapes"],
[true true false]]
//to get apple ===== arrayName[class][subclass]
console.log(array[1][0])ruby get the number of same element in array
names = ["Jason", "Jason", "Teresa", "Judah", "Michelle", "Judah", "Judah", "Allison"]
counts = Hash.new(0)
names.each { |name| counts[name] += 1 }
# => {"Jason" => 2, "Teresa" => 1, ....Copyright © 2021 Codeinu
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