What is array.toString() in Javascript?
The toString() method is used to convert an array to a string of comma-separated array values. In other words, the method returns a string that represents the specified array and its items or elements.
Syntax
array.toString()
Parameters
This method accepts no parameters.
Return value
toString() returns a string that represents the array elements. If the array is empty, then toString() returns an empty string.
Code
The example below shows how to use the toString() method on an array:
// create arrayslet array1 = [1, 2, 3, 4, 5];let array2 = ["a", "b", "c", "d", "e"]let array3 = ["Ruby", "Python", "Javascript", "Java"]let array4 = ["", {name: "toString()"}, NaN, 0]// call the toString() methodlet A = array1.toString();let B = array2.toString();let C = array3.toString();let D = array4.toString();// print returned value to consoleconsole.log(A);console.log(B);console.log(C);console.log(D);
Note: An empty array will return nothing if
toString()is called.
// create empty arraylet emptyArray = []// print the returned value of// emptyArray when toString() is called on itconsole.log(emptyArray.toString()); // Empty string returned
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