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Class notes Complete JavaScript™ Tips & Secrets for Profession
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416

July 2024

2023/2024
Sometimes, you need to work with an array while ensuring you don't modify the original. Instead of a clone method, arrays have a slice method that lets you perform a shallow copy of any part of an array. Keep in mind that this only clones the first level. This works well with primitive types, like numbers and strings, but not objects. To shallow-clone an array (i.e. have a new array instance but with the same elements), you can use the following one-liner: var clone = arrayToC(); This cal...
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