Computer scienceProgramming languagesGolangWorking with dataWorking with files

Writing data to files

The os.WriteFile() function

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It only returns an error.

It creates a file in case it doesn't exist and then writes a slice of bytes to it.

It returns the number of bytes written to the file and an error.

We can only use it to append data to existing files.

It takes the name of the file directly, a slice of bytes and the permission mode as its arguments.

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