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welcome to minute JavaScript where I cover topics quickly and concisely today Ill be covering the array methods index of includes and find the index of is used to search for an item and return the index of that item if its found if the item is not found index of will return negative one Ill start off by typing letters index of and Im going to search for the letter C here its returning two because its the second index remember that array start at zero index so a is 0 B is 1 and C is 2 now if I were to search for an element that doesnt exist lets say Z index of will return negative 1 and remember because arrays are zero index a return result of zero means that it matched the first item in the array includes is similar to index of but instead of returning a number it returns a boolean on whether or not the item is found here Im going to search for the letter C and of course it returns true if I were to search for something that doesnt exist lets say the letter Z I would expect