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Editor to share with you how js values into Boolean values, I believe that most people do not understand, so share this article for your reference, I hope you will learn a lot after reading this article, let's go to understand it!

Value to Boolean value

In JavaScript, the following values are converted to false when Boolean values are converted, and other values are converted to true:

Undefined

Null

0

-0

NaN

"

Usually if we want to convert an explicit value to a Boolean value, we will use the Boolean () method to convert it. Actually, we can use it! Operator to convert a value to my Boolean value. We know, one! Is to convert the object to a Boolean and reverse it, two! Is to reverse the Boolean value, which is equivalent to directly converting a non-Boolean value to a Boolean value. This operation performs much faster than the Boolean () method because it is a native operation of the computer:

!! undefined / / false values! "996" / / true false values null / / false false values nan / / false above is all the content of the article "how js converts values to Boolean values". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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