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I have two arrays, one with data and one with indexes. I want to know if there are some good ways to delete the elements in data at the position given in indexes. I could do simple iteration but I am wondering what the shortest way is:
data = ['a','b','c','a','b','c','a','b','c']
indexes = [2,5,8]
//some code here
Elements in data are gone when the indexes happened to coincide with numbers in array indexes. It should look like this:
['a','b','a','b','a','b']
916
To remove elements contained in another array, we can use a combination of the array filter() method and the Set() constructor function in JavaScript.
Use the . filter() method on the first array and check if the elements of first array are not present in the second array, Include those elements in the output.
pop() function: This method is use to remove elements from the end of an array. shift() function: This method is use to remove elements from the start of an array. splice() function: This method is use to remove elements from the specific index of an array.
data.values_at(*data.each_index.to_a - indexes)
# => ["a", "b", "a", "b", "a", "b"]
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