Data type conversion of JavaScript variables

The type conversion of variables is usually automatically converted by JS, but sometimes manual conversion is required.

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##Convert other types to Boolean

First introduce a system built-in function Boolean(), which is used to force data into Boolean type. As for what a function is, we will introduce it later

Note: We only forced one conversion, you can also use the forced conversion function to convert the rest and view the output results

Convert other types into character types

This time we use the String() function to force other types into character types

Note: Please test the others carefully. If you encounter unclear conversion in the future, please remember to use the forced conversion function

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Convert other types to numeric types

We use the Number() function to force conversion of other types into characters Type