How to Turn JavaScript Array into Comma-Separated List

var arr = ["Zero", "One", "Two"];
document.write(arr.join(", "));

How to convert array into comma separated string in javascript

The method array.toString() actually calls array.join() which result in a string concatenated by commas. ref

var array = ['a','b','c','d','e','f'];document.write(array.toString()); // "a,b,c,d,e,f"

how to convert array of object to comma separated array of object

Why not! just turn it to JSON format, then remove open or closed square-brackets:

let arr = [{name:"k"},{name:"p"}];
console.log(JSON.stringify(arr).replace(/\[|\]/g,''))

Result as expected: {"name":"k"},{"name":"p"}

Convert array into comma separated strings

You could stringify the elements before joining.

var array = ["123", "456", "789"],    result = array.map(a => JSON.stringify(a)).join();    console.log(result);

Easy way to turn JavaScript array into comma AND Quotation Marks separated string list?

You can use .map to convert array elements to strings, and JSON.stringify to get the resulting string:

const array = [1,2,3];

const result = JSON.stringify(array.map(String));

console.log(result);

Join nested array and output comma-separated list

You'll want to map over your array to grab the text prop out of it and then apply the desired join.

const arr = [  {value: 1, text: 'one'},  {value: 2, text: 'two'},  {value: 3, text: 'three'},  {value: 4, text: 'four'}];
const output = arr.map(el => el.text).join(', ');
console.log(output);

get array, separate comma separated values and then recreate array

If you can ensure your nested arrays will always have two elements then it's quite simple:

const source = [ 
  ["Polymeric", "Vehicle Graphics (Basic)"],
  ["Cast", "Vehicle Graphics (Part Wrap), Vehicle Graphics (Full Wrap)"],
  ["Polymeric", "Vehicle Graphics (Part Wrap)"]
];

// Flat map instructs that 
// the nested arrays we're going to return
// should be spread onto the root one
source.flatMap(([key, value]) => { // [key, value] de-structs the array passed as a parameter
  // Here we're getting an array of all possible values; 
  // if there's no ", " then we get a single element, 
  // otherwise we get the whole collection of values
  const values = value.split(', ') 

  // Now, for each of the individual values we create the key-value pairs
  return values.map(singleValue => [key, singleValue])
})

Yields:

• Array destructuring JavaScript

• Docs for flatMap

Array to Comma separated string and for last tag use the 'and' instead of comma in jquery

You can use .slice():

> var a = [1, 2, 3, 4, 5];
> [a.slice(0, -1).join(', '), a.slice(-1)[0]].join(a.length < 2 ? '' : ' and ');
'1, 2, 3, 4 and 5'

• a.slice(0, -1).join(', '): takes all but the last element and joins them together with a comma.
• a.slice(-1)[0]: it's the last element.
• .join(a.length < 2 ? '' : ' and '): joins that string and the last element with and if there are at least two elements.

How to convert object array to comma separated string?

You can use join

let arr = ["Varberg","Halmstad","Falkenberg"]
console.log(arr.join(','))

Turn properties of object into a comma-separated list?

You can use this one-liner in modern browsers

Object.keys(person).map(function(k){return person[k]}).join(",");

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