String using a string literal,
const greeting = "What a beautiful world".
String using the
const greeting = new String("What a beautiful world");
split() method that splits a string into multiple substrings based on a splitter. The split method returns an array with all the divided portions of the strings. The split method doesn't change the original string.
We split a string using the space(' ') as a splitter in the example below.
const greeting = "What a beautiful world"; const arr = greeting.split(' '); console.log(arr);
The output is an array with a bunch of strings after splitting.
["What", "a", "beautiful", "world"]
The splitter(the argument to the split method) can be a single character or any other strings. If we want to split a string by each character, we can pass the empty string('') as the splitter.
const greeting = "What a beautiful world"; const arr = greeting.split(''); // The splitter is an empty string, not a space console.log(arr);
['W', 'h', 'a', 't', ' ', 'a', ' ', 'b', 'e', 'a', 'u', 't', 'i', 'f', 'u', 'l', ' ', 'w', 'o', 'r', 'l', 'd']
If you invoke the split method without passing a splitter, it returns an array with the entire string.
const greeting = "What a beautiful world"; const arr = greeting.split(); console.log(arr);
['What a beautiful world']
Splitting With a Limit
split() method takes another optional argument other than the splitter. You can also pass a
limit to limit the number of splits. In the following example, we split the string using a space character with a limit of 2.
const greeting = "What a beautiful world"; const arr = greeting.split(' ', 2); console.log(arr);
After splitting by the space character, it will return an array of strings, but the returned array will contain only the first two splits. Hence the output,
Since ES6, we can pick the values from the array in a much more innovative way. As the split method returns an array, we can use the array destructuring syntax to get the element from the array.
const cartoon = "Tom Jerry"; let [tom, jerry] = cartoon.split(' '); console.log(tom); // Tom console.log(jerry); // Jerry
That's all for now. I hope you find this article helpful.