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JavaScript data types

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Author: User
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One, JS altogether six kinds of data types: including five kinds of raw data type number/string/boolean/null/undefined An object Type "Object" Function/array/date ...

Ii. type conversion: 1.typeof:typeof 100>number/typeof true>boolean/typeof function > function/typeof Null > Object

Three, type detection: 1.funciton and the original data type with typeof, encountered null failure, with strictly equal to 2. Objects such as arrays are used instanceof3.Object.prototype.toString to get the type.

JavaScript data types

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