Print an output in one line using console.log()

In Node.js there is a way: process.stdout

So, this may work:

process.stdout.write(`${index},`);

where index is a current data and , is a delimiter.

Also you can check same topic here.

You could just use the spread operator ...

var array = ['a', 'b', 'c'];

console.log(...array);

So if you want to print numbers from 1 to 5 you could do the following:

    var array = [];
    for(var i = 1; i <= 5; i++)
    {
       array.push(i);
    }
    console.log(array.join(','));

Output: '1,2,3,4,5'

Array.join(); is a very useful function that returns a string by concatenating the elements of an array. Whatever string you pass as parameter is inserted between all the elements.

Hope it helped!

You can just console.log the strings all in the same line, as so:

console.log("1" + "2" + "3");

And to create a new line, use \n:

console.log("1,2,3\n4,5,6")

If you are running your app on node.js, you can use an ansi escape code to clear the line \u001b[2K\u001b[0E:

console.log("old text\u001b[2K\u001b[0Enew text")

You can also use the spread operator (...)

console.log(...array);

The "Spread" operator will feed all the elements of your array to the console.log function.

You can also do it like this:

let s = "";
for (let i = 0; i < 6; i++) {
  s += i.toString();
  if (i != 5) {
    s += ",";
  }
}
console.log(s);

It's not possible directly in a browser environment. You'll need to create some buffer to hold values that you want to print on the same line.

In previous answers there are examples of using arrays and loops. As an alternative you can solve it functionally:

const print = ((buffer = '') => arg => {
  if (arg !== '\n') {
    buffer += arg
  } else {
    console.log(buffer)
    buffer = ''
  }
})()

print('x')
print('y')
print('z')    
print('\n') // flush buffer

Or you can use object setters

const c = {
  buffer: '',
  set log(val) {
    if (val !== '\n') {
      this.buffer += val
    } else {
      console.log(this.buffer)
      this.buffer = ''
    }
  }
}

c.log = 'foo'
c.log = 42
c.log = 'bar'
c.log = '\n'

You can use process.stdout.write

Like This in a loop..

process.stdout.write(`${arr[i]} `)

You can print them as an array

if you write:

console.log([var1,var2,var3,var4]);

you can get

[1,2,3,4]

You Can Use The Spread Operator. The "log" method Prints It's args in a Single Line and You can Give it The Elements of the Array as individual Arguments By Spreading the Array.

console.log(... array);

You can use comma delimiter:

console.log(1,2,3,4);

but if you want commas to show up in the output then you will need to use strings:

console.log('1,','2,','3,','4');

You can do this instead. It's simple.

    var first_name = ["Ram", "Sita", "Hari", "Ravi", "Babu"];
    name_list = "";
    name_list += first_name;
    console.log(name_list);
    // OR you can just typecast to String to print them in a single line separated by comma as follows;
    console.log(first_name.toString());
    // OR just do the following
    console.log(""+first_name);
    // Output: Ram,Sita,Hari,Ravi,Babu

process.stdout.write('\x1b[2K');
process.stdout.write(`${anyDataOrText}` + '\x1b[0G');

\x1b[2K = remove last
\x1b[0G = put new

In Node Js it's pretty simple, but in raw JavaScript I'm not sure.

In NodeJs we have an object named process in which there is an object named stdout, using the methods in this object you can do this.

You can print one text after another as follows:

process.stdout.wrtie("Hello ");
process.stdout.wrtie("world!/n");

// output: Hello world!

In this method, you can only print one string, if you intend to display data of other types and display the result beautifully, like console.log, it is better to use external libraries.

The most convenient option can be Softio.

To use this library, just follow the steps below:

1. Install the package

npm install softio

2. Import and use it

const Console = require("softio");

Console.Out.write("Hello ");
Console.Out.write("world!\n");

// output: Hello world!

The difference between this method and the above method is that softio accepts all types of data and displays them correctly and beautifully, but in the first method you could only display one string.

I hope it helped.

Clean and simple:

The trick is using \r at the end

const arr = [0, 1, 2, 3]

for(let i = 0; i < arr.length; i++) {
  process.stdout.write(`Index: ${i}\r`);
}