Jak porównać elementy tablicy

var temp = [];

$('li').each(function(i) {
  temp[i] = {
    custAccId: $('#accId' + i).val(),
    accountNumber: $('#account' + i).val(),
    ifscCode: $('#ifsc' + i).val()
  }

  if ($('#account' + i).val() == $('#account' + (i+1)).val()) {
    console.log('Account '+i+' equal to account '+(i+1));
  }

});

console.log(temp)

input {width: 5em}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

<ul>
  <li>0 
    <input type="text" id="accId0" value="00">
    <input type="text" id="account0" value="AA">
    <input type="text" id="ifsc0" value="X00">
  </li>
  <li>1 
    <input type="text" id="accId1" value="01">
    <input type="text" id="account1" value="AA">
    <input type="text" id="ifsc1" value="X01">
  </li>
  <li>2 
    <input type="text" id="accId2" value="02">
    <input type="text" id="account2" value="BB">
    <input type="text" id="ifsc2" value="X02">
  </li>
</ul>

const a = {a: 1};
const b = {a: 1};
const c = {a: 2};

const data = [a, b];
const faultyData = [a, b, c];

// Throw an exception if something is not the same
function validate(dataToValidate) {
    dataToValidate.reduce((previous, current) => {
       if (previous === null) { return current }; // Initial loop. Nothing to compare
       if (current.a === previous.a) { return current; }
       throw new Error('Some values are different')
    }, null)
}

validate(data);

try {
  validate(faultyData)
} catch (err) {
  console.warn('An error happened while validating')
}