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@@ -107,6 +107,7 @@ if (zero) { // zero is true, because it's an object
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On the other hand, using the same functions `String/Number/Boolean` without `new` is totally same and useful thing. They convert a value to the corresponding type: to a string, a number, or a boolean (primitive).
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For example, this is entirely valid:
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```js
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let num =Number("123"); // convert a string to number
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