Let's say I have an array with various strings in it:
let myArray = [
"www.goal.com/kdñon-BigPussy",
"www.goal.com/qwñeorkfnvowv-Paulie",
"www.goal.com/woeknapffflmkub-Tony",
"www.goal.com/npylhyokhp-Silvio",
"www.goal.com/irjnfrfrn-Silvio"
];
As you see, every string ending is formatted like this: -Name.
What I want is to store the strings with the same ending (www.goal.com/npylhyokhp-Silvio and www.goal.com/irjnfrfrn-Silvio in our example) inside a new array.
How would you do it using JavaScript?
You could use String.lastIndexOf() to find where the name part of the URL starts:
const myArray = [
"www.goal.com/kdñon-BigPussy",
"www.goal.com/qwñeorkfnvowv-Paulie",
"www.goal.com/woeknapffflmkub-Tony",
"www.goal.com/npylhyokhp-Silvio",
"www.goal.com/irjnfrfrn-Silvio"
];
const groupedByName = myArray.reduce((grouped, url) => {
const name = url.substring(url.lastIndexOf("-") + 1, url.length);
grouped[name] = grouped[name] || [];
grouped[name].push(url);
return grouped;
}, {});
console.log(groupedByName);
const groups = Object.values(groupedByName);
console.log(groups);You can use Array.prototype.filter() passing a testing function that implements String.prototype.endsWith() on each string in the array and returns true or false according the passed string as first argument.
let myArray = [
"www.goal.com/kdñon-BigPussy",
"www.goal.com/qwñeorkfnvowv-Paulie",
"www.goal.com/woeknapffflmkub-Tony",
"www.goal.com/npylhyokhp-Silvio",
"www.goal.com/irjnfrfrn-Silvio"
];
const filteredArray = myArray.filter((url) => url.endsWith('Silvio'))
console.log(filteredArray);