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I have a one-dimensional array of strings in JavaScript that I'd like to turn into a comma-separated list. Is there a simple way in garden-variety JavaScript (or jQuery) to turn that into a comma-separated list? (I know how to iterate through the array and build the string myself by concatenation if that's the only way.)
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Use the String. split() method to convert a comma separated string to an array, e.g. const arr = str. split(',') . The split() method will split the string on each occurrence of a comma and will return an array containing the results.
To convert an array to a string without commas, call the join() method on the array, passing it an empty string as a parameter - arr. join('') . The join method returns a string containing all array elements joined by the provided separator.
join() The join() method creates and returns a new string by concatenating all of the elements in an array (or an array-like object), separated by commas or a specified separator string. If the array has only one item, then that item will be returned without using the separator.
To convert a JavaScript array into a string, you can use the built-in Array method called toString . Keep in mind that the toString method can't be used on an array of objects because it will return [object Object] instead of the actual values.
The Array.prototype.join() method:
var arr = ["Zero", "One", "Two"]; document.write(arr.join(", "));Actually, the toString() implementation does a join with commas by default:
var arr = [ 42, 55 ]; var str1 = arr.toString(); // Gives you "42,55" var str2 = String(arr); // Ditto I don't know if this is mandated by the JS spec but this is what most pretty much all browsers seem to be doing.
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