The match
method, invoked with the
g
modifier, returns all found
matches as an array. Let's look at examples.
Example
Let's obtain an array of substrings
consisting of the letters 'a'
:
let str = 'a aa aaa aaaa';
let res = str.match(/a+/g);
As a result, the following will be written to the variable:
['a', 'aa', 'aaa', 'aaaa']
Example
Let's get an array of numbers:
let str = '1 23 456 789';
let res = str.match(/\d+/g);
As a result, the following will be written to the variable:
['1', '23', '456', '789']
Example
Let's get an array of all digits:
let str = '1 23 456 789';
let res = str.match(/\d/g);
As a result, the following will be written to the variable:
['1', '2', '3', '4', '5', '6', '7', '8', '9']
Practical tasks
Given a string:
let str = 'site.ru sss site.com zzz site.net';
Get an array of domain names from this string.
Given a string:
let str = 'a1b c34d x567z';
Find the sum of all numbers in this string.