Node.js async/await~ example of deleting files
1) Delete files like synchronous writing
var util = require("util");
var fs = require("fs");
var unlink = util.promisify(fs.unlink);
async function f(fileNameArr) {
for(var i = 0; i < fileNameArr.length; i++){
await unlink(fileNameArr[i]);
}
}
//
f(["./1.txt", "2.txt", "3.txt"]);
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