Does JavaScript support array or list comprehensions like Python?

General Discussions
#1

Does JavaScript support array or list comprehensions like Python?

#2

You can convert the string to an array of characters and filter out the forbidden characters:

const string = '1234-5';
const forbidden = '-';
const result = Array.from(string)
.filter(i => !forbidden.includes(i))
.map(Number);
console.log(result); // Output: [1, 2, 3, 4, 5]
#3

You can split the string on the forbidden character and then reduce the resulting array to individual integers.

const string = '1234-5';
const forbidden = '-';
const result = string.split(forbidden)
.reduce((acc, part) => {
return acc.concat(Array.from(part).map(Number));
}, []);
console.log(result); //

Output: [1, 2, 3, 4, 5]