Dynamic DOM
- Add, remove, or style elements in real time using JS.
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Array
- Arrays store multiple values inside square brackets, like [1,2,3].
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Array Length
- array.length tells how many elements are in an array.
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Push Method
- array.push("new") adds an item at the end.
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Pop Method
- array.pop() deletes the last item from an array.
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Shift Method
- array.shift() takes the first item out.
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Unshift Method
- array.unshift("start") adds a new first element.
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IndexOf
- Finds where a value is located inside an array.
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Includes
- array.includes("apple") returns true or false.
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