34. Toad Notes Go language--built-in functions

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34. Toad Notes Go language--built-in functions

A few functions are predefined, which means that you can use them without referencing any packages.

Close new Paniccomplex delete make recover real len append print imag cap copy println

Close is used for channel communication. Use it to close the channel.

Delete is used to remove an instance from the map.

Len and cap are available for different types, and Len is used to return string, slice, and array lengths.

New is used for various types of memory allocations.

Make is used for memory allocations of built-in types (map, slice, and channel).

Copy is used to replicate slice.

Append is used to append slice.

Panic and recover are used for exception handling mechanisms.

Print and println are the underlying print functions that can be used without the introduction of a FMT package.

Complex, real, and imag are all used to process complex numbers.