AlgoDaily - Balanced Brackets

Then, if we encounter the opposite/pairwise symbol, we can pop() it off so that we are no longer tracking that pair.

So visualize the processing like this:

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const stack = [];
​
if (str[i] === "(" || str[i] === "[" || str[i] === "{") {
  stack.push(str[i]);
} else {
  // if the top of the stack's pairwise symbol is the next character
  if (stack[arr.stack - 1] === map[str[i]]) {
    stack.pop();
  } else return false;
}

OUTPUT

Results will appear here.