About the difference between fs.stat and fs.fstat in node.js
fs.stat and fs.fstat are both used to obtain status information of files. The following article mainly introduces relevant information about the difference between fs.stat and fs.fstat in node.js. The following is introduced in the article It is very detailed and has certain reference and learning value for everyone. Friends who need it can take a look below.
Preface
fs.stat and fs.fstat have the same method functions, they both obtain the status information of the file. This article mainly This article introduces the relevant content about the difference between fs.stat and fs.fstat in node.js. It is shared for everyone’s reference and study. Let’s take a look at the detailed introduction:
##fs.stat Usage:
fs.stat('./aa.js', function(err, stats) {
if (err) {
throw err;
}
console.log(stats);
});##fs.fstat Usage:
fs.open('./aa.js', 'a', function(err, fd) {
if (err) {
throw err;
}
fs.fstat(fd, function(err, stats) {
if (err) {
throw err;
}
console.log(stats);
});
})The first parameter fs.stat receives is a file path string
fs.fstat receives a File descriptor;
The kernel uses file descriptors to access files. File descriptors are nonnegative integers. When opening an existing file or creating a new file, the kernel returns a file descriptor. To read and write files, you also need to use a file descriptor to specify the file to be read and written.
Other Fs methods are similar to this description;
The above is the content of this article All content, I hope it will be helpful to everyone's learning. For more related content, please pay attention to the PHP Chinese website!
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NodeJs form-data format transfer file methodThe principle of Node.js event-driven mechanismThe above is the detailed content of About the difference between fs.stat and fs.fstat in node.js. For more information, please follow other related articles on the PHP Chinese website!
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