## Index Of ### Instructions Create 3 functions: - `indexOf` that return the index of the first occurence of a value - `lastIndexOf` that return the index of the last occurence of a value - `includes` that return true if the value was found in the array > If a value is not found, the returned index is -1 > `indexOf` and `lastIndexOf` takes an additionnal `fromIndex` argument > that allow you to begin searching from a specific index. ### Notions - https://devdocs.io/javascript/global_objects/array/indexof - https://devdocs.io/javascript/global_objects/array/lastindexof - https://devdocs.io/javascript/global_objects/array/includes ### Code provided ```js Array.prototype.indexOf = undefined Array.prototype.lastIndexOf = undefined Array.prototype.includes = undefined ```