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There are 5 simple data types in ECMAscript, also known as basic data types: Undefined, Null, Boolean, number, and string. There is also a complex data type--object. Undefined type When declaring a variable with VAR but not initializing it, the
In the array object there is a given function can delete the specified elements in the array, although very useful, but the total feel is not touching the more awkward, the following share a custom delete array specified index value elements of the
Window jitter effect in many places have applications, such as NetEase Landing window has such an effect, when landing failure will appear jitter effect, this is not only dynamic, but also make people feel new, the following is a section of such