Javascript, is there a way to write an array as a single text string without commas or gaps? [duplicate]

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array join() method without a separator

I'm trying to code a simple array that will then be displayed as a single, continuous line of text with no comma's gaps or separations of any kind. For example, if the array was about fruit, and the fruit involved were apples[0] and bananas[1], it would be displayed as applesbananas.

I am also using socket io and tried the array.join command, but that came up as a 'native expression' in the cmd, which I wasn't sure what to do with.

This is the code I have so far:

var A = 0
var B = 0
var master = new Array();

io.sockets.on("connection", function (socket) {


    socket.on("message", function (data) {

        var new_data = data.split(',');

        if (new_data == 'A') {
            master.push(new_data)
            console.log(A);
        }
        else if (new_data == 'B') {
            master.push(new_data)
            console.log(B);
        }
        var final = (master.join);
            console.log(final);
            socket.emit("message", 'master,' + final);
            socket.broadcast.emit("message", 'master,' + final);

Right now, this .join expression is being displayed as a native expression in the cmd. Is there any way to join the array elements in a way the cmd or socket io will understand?

Thanks for the help!

.join is a method, you have to call it: developer.mozilla.org/en-US/docs/JavaScript/Reference/…. — Felix Kling
– Felix Kling, Commented Sep 15, 2012 at 4:53

pdoherty926 · Accepted Answer · 2012-09-15 04:54:44Z

2

You're seeing that error because you're missing parenthesis after your call to .join.

You can join an array with no spaces using .join('').

answered Sep 15, 2012 at 4:54

pdoherty926

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Derek 朕會功夫 · Accepted Answer · 2012-09-15 04:56:59Z

1

Try this:

var final = master.join("");

answered Sep 15, 2012 at 4:56

Derek 朕會功夫

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