If you want to double every number: const values = [1, 2, 3, 4, 5]; const doubled = values.map ( (number) => number * 2); Like .forEach (), .map () provides the element, the index, and the original ...
𝗔𝗿𝗿𝗮𝘆 𝗠𝗲𝘁𝗵𝗼𝗱𝘀 𝗶𝗻 𝗝𝗮𝘃𝗮𝗦𝗰𝗿𝗶𝗽𝘁 JavaScript arrays help you manage lists of data. You need to know these methods to write clean code. Managing Size and Content • length: Returns the ...
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