CODEWITHSUNDEEP
javascriptjsonnode.js
nlar
nlar

Reputation: 3

Node.js having trouble updating items in file

I'm having troubles updating my users, my goal is to continuously add points to a user every x amount of seconds. Every time it goes through the loop, it is only adding the 10 points to the last user even though I go through each user in the loop... Any help would be appreciated!

setInterval(function(){            
        var fs = require("fs");
        var data = fs.readFileSync('updatedPoints.txt', 'utf-8');
        fs.readFile("updatedPoints.txt", {encoding: "utf8"}, function(error, data){
        var i = 0;
        var currentUser = "";
        //Reads until nothing left in the file
        while(data[i] != null){                 
            currentUser += data[i]
            i++;
        }
        var splitUsers = currentUser.split(",");
        for(var i = 0; i < splitUsers.length - 1; i++){
            //Splits up the name right until the first bracket which holds the users current points
            var name = String(splitUsers[i].match(/^[^\(]+/g));     
            //Gets the users points         
            var userPoints = Number(splitUsers[i].match(/\(([^)]+)\)/)[1]);                 
            console.log(name);
            console.log(userPoints);                                                
            var test = userPoints + 10;
            var newValue = data.replace(name+"("+userPoints+")", name+"("+test+")");
            fs.writeFileSync('updatedPoints.txt', newValue, 'utf-8');
            console.log('readFileSync complete');                    
        }
    });
    }, 3000);

Upvotes: 0

Views: 50

Answers (1)

quantong zhao
quantong zhao

Reputation: 61

you should reset data value after data.replace,
like that 

var newValue = data.replace ...

data = newValue

because string.replace can't reset string directly

Upvotes: 1

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