node.js - JSON to backup JSON -


i want use fs backup 1 json file next heres code

function saveworld() {   (i = 0; < worlds.length; i++) {    fs.writefilesync("./save", json.stringify(worldnames), "utf8")    fs.writefilesync("./save", json.stringify(worlds), "utf8")   }  }

and overwrites first file can me prevent this

you want second call fs.appendfile()


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