For example we have an expression in the string:
(2 + (4 - 2)) - (16 / 8)
I need to separate only parent ones:
['2 + (4 - 2)', '16 / 8']
I tried using indexes of ( and ):
let str = ''
let array1 = []; // indexes of (
let array2 = []; // indexes of )
for (let i = 0; i < str.length; i++) {
if (str[i] == '(') array1.push(i);
if (str[i] == ')') array2.push(i);
}
and then use substring.
>Solution :
Try this:
function getPartsInBracket(input) {
const out = [];
let bracketIndexes = [];
for (let i = 0; i < input.length; i++) {
const char = input.charAt(i);
if (char === '(') {
bracketIndexes.push(i);
} else if (char === ')') {
if (bracketIndexes.length === 1) {
out.push(input.substring(bracketIndexes[0] + 1, i));
}
bracketIndexes.pop();
}
}
return out;
}
console.log(getPartsInBracket('(2 + (4 - 2)) - (16 / 8)')); // -> [ '2 + (4 - 2)', '16 / 8' ]