Moreover, this function is defined under the io package. And if w is implemented by StringWriter then its WriteString method is called immediately. I am creating Go snippet to write log into a file using os module, You can use the writing into the file feature for logging, saving data, store data in file etc. The WriteString () function in Go language is used to write the contents of the stated string s to the writer w, which takes a slice of bytes. You can read data from a file or write something into the file using golang os package. Go is providing os package to create/read/write the file. The os.Create() function creates or truncates a file, and the io. The read and write files are very important features of any programming language. To write a file in Golang, you can use the io.WriteString() function. go run writewords.go data written cat words.yaml - falcon - sky - earth - cloud - fox Go YAML write example II In the following example, we write users to the YAML file. This golang tutorial help to read and write file using Golang. We have an array of words the array is serialized into the YAML format with Marshal and written to the words.yaml with WriteFile.
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