![]() ![]() How to convert JavaScript object to JSON using JSON.How to check if a string contains a substring in Javascript.How to search for a string or object in an array in Javascript.The split() method splits a string using a. You will also know how to show it without commas, and how to use a custom separator when you print an array as a string. There is a built-in JavaScript method which you can use and convert a comma-separated string into an array. You now know several ways to convert a Javascript array to a string with commas. JSON, however, disallows all trailing commas. Trailing commas are now also allowed in object literals, function parameters, named imports, named exports, and more. So if you specify a separator that includes the quotation marks and commas you just have to manually append a starting and ending quote for the first and last item (respectively). Var str4 = array.join('') // 'TennisSwimmingGolfBasketball' Summary JavaScript has allowed trailing commas in array literals since the beginning. The Array.join() method returns a string that is all of the array elements concatenated into a single string with an (optional) separator between each item. But because you can specify a custom character as the separator there are other ways you can output this string : var str3 = array.join(' + ') // 'Tennis + Swimming + Golf + Basketball' In the example above you can see the string separated with commas or spaces. Var str2 = array.join(', ') // 'Tennis, Swimming, Golf, Basketball'Ĭonvert JavaScript array to string without commas (with spaces)Īs stated above the array.join() method accepts a value as a separator. If you don’t specify one it defaults to a comma : var str1 = array.join() // 'Tennis,Swimming,Golf,Basketball' However there is another way of showing an array as a list of comma separated strings using the array.Join method, and this method also accepts an optional separator as an argument. Var myVar = sports.toString()) // 'Tennis,Swimming,Golf,Basketball' ![]() const sports = Convert JavaScript array to string with commasĬalling the toString() method on the array will return a string of each array item separated by commas, as shown in this example : const sports = Let’s start by defining an array that we will use for these JavaScript examples. I’ll include examples of the array.Join() method too. As always, there is more than one way to show a JS array as strings, separating the values using a space, a comma, or a custom separator. To convert a JS array to a string with commas, we can use the toString() method to return a comma separated string of the array values.Įvery JavaScript object has a toString() method, which is used to show an object only represented by a text string. You might be wondering which method is used to convert a JavaScript array into a string. ![]()
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