While working on a task involving this function, I noticed that it is not returning the values as expected.
function intersection(arrays) {
return arrays;
}
console.log(intersection([5, 10, 15, 20],[15, 88, 1, 5, 7],[1, 10, 15, 5, 20]));
OUTPUT
[5, 10, 15, 20]
I am curious about how to access all sub-arrays of a main array within this function.
To successfully execute the function, make sure to provide an array within square brackets [].
function findIntersection(arrays) {
return arrays;
}
console.log(findIntersection([[5, 10, 15, 20],[15, 88, 1, 5, 7],[1, 10, 15, 5, 20]]));Utilizing rest parameters alongside Array#flat is a helpful technique.
function mergeArrays(...arrays) {
return arrays.flat();
}
console.log(mergeArrays([2, 4, 6, 8],[10, 12, 14, 16],[18, 20, 22, 24]));My recommendation is to consider one of the alternative solutions. However, if you prefer not to modify the function signature or calling code, you can achieve the desired outcome by utilizing Array.from(arguments) in your code to access all passed arguments.
function intersection(arrays) {
return Array.from(arguments);
}
console.log(intersection([5, 10, 15, 20],[15, 88, 1, 5, 7],[1, 10, 15, 5, 20]));When attempting to pass multiple arguments to a function that only accepts a single argument, only the first array will be processed by the function.
The rest operator allows you to convert a single parameter into an array of parameters with any length. This enables you to include multiple arrays in your function call.
function intersection(...arrays) {
return arrays;
}
const result = intersection(
[5, 10, 15, 20],
[15, 88, 1, 5, 7],
[1, 10, 15, 5, 20]
);
console.log(result);Alternatively, you can pass the arrays as a multidimensional array.
function intersection(arrays) {
return arrays;
}
const result = intersection(
[
[5, 10, 15, 20],
[15, 88, 1, 5, 7],
[1, 10, 15, 5, 20]
]
);
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