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//ascending order
arr.sort(function(a, b){return a-b});
arr.sort((a, b) => a - b);
//descending order
arr.sort(function(a, b){return b - a});
arr.sort((a, b) => b - a);
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arr.sort((a, b) => (a.nameofKeyFromArray < b.nameofKeyFromArray ? -1 : Number(a.nameofKeyFromArray > b.nameofKeyFromArray)));
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<!DOCTYPE html>
<html>
<body>
<p>sort array value in alphabatical order</p>
<p>Click on button click we can see our short array value</p>
<button onclick="banksNameInAlphabaticalOrder()" id="btnClick">Click</button>
<p id="pId"></p>
<script>
var banksOfIndis = ["CentralBankOfIndia","AndhraBank","BankOfBaroda","CanaraBank","AllhabadBank"];
function banksNameInAlphabaticalOrder() {
banksOfIndis.sort();
document.getElementById("pId").innerHTML = banksOfIndis;
}
</script>
</body>
</html>