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JavaScript: converting any value to an object

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This post is about converting between primitive values and wrapper objects [1]. Thankfully, one is usually not faced with this kind of task in JavaScript. The most frequent use case is to add properties to a primitive. As a primitive is immutable, you need to convert it to a wrapper object to do so. Read on if you want to see some of JavaScript’s more obscure corners. Let us start with a short quiz: What does ({}).valueOf.call(myvar) do?

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JavaScript: converting any value to an object

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