AlgoDaily - Balanced Brackets

Finally-- if at any time, we encounter a mismatch, we know it's an invalid string.

The time complexity is O(n), as we iterate through all the characters of the string.

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​
 
var assert = require('assert');
​
function validateSymbols(str) {
  // implement this method
  return str;
}
​
try {
  assertIsFunction(validateSymbols);
​
  console.log('PASSED: ' + '`validateSymbols` is a function');
} catch (err) {
  console.log(err);
}
​
try {
  assert.equal(validateSymbols('[]'), true);
​
  console.log('PASSED: ' + "`validateSymbols('[]')` should return `true`");
} catch (err) {
  console.log(err);
}
​
try {
  assert.equal(validateSymbols('{{[]}}'), true);
​
  console.log('PASSED: ' + "`validateSymbols('{{[]}}')` should return `true`");

OUTPUT

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