1. push() – For Expanding the Party

At the start BPJ had two leaders Narendra Modi and Amit Shah. To strengthen the party they invited Yogi Adityanath and Rajnath Singh using push() Method.

push() :- Adds elements to the end of an array.

let bpjLeaders = ["Narendra Modi", "Amit Shah"];
bpjLeaders.push("Yogi Adityanath", "Rajnath Singh");  
console.log(bpjLeaders);  
// ["Narendra Modi", "Amit Shah", "Yogi Adityanath", "Rajnath Singh"]

2. pop() – For Removing Weak Links

   Rajnath Singh stepped down from active campaigning. Modi ji removed him using pop() method.

   pop () :- It removes the last element from an array.

bpjLeaders.pop();  
console.log(bpjLeaders);  
// ["Narendra Modi", "Amit Shah", "Yogi Adityanath"]

3. shift() – Replacing Old Leaders

   Narendra Modi stepped back to focus on strategy. BPJ used shift() to remove him from the front.

   shift() removes the first element from an array.

bpjLeaders.shift();  
console.log(bpjLeaders);  
// ["Amit Shah", "Yogi Adityanath"]

4. unshift() – Appointing a New Leader

JP Nadda was appointed as campaign head using unshift().

unshift() adds elements at the beginning of an array.

javascriptCopyEditbpjLeaders.unshift("JP Nadda");  
console.log(bpjLeaders);  
// ["JP Nadda", "Amit Shah", "Yogi Adityanath"]

5. map() – Assigning Roles

Each leader was given a specific role using map().

map() creates a new array by applying a function to each element.

javascriptCopyEditlet roles = bpjLeaders.map(leader => leader + " - Campaign Strategist");
console.log(roles);
// ["JP Nadda - Campaign Strategist", "Amit Shah - Campaign Strategist", "Yogi Adityanath - Campaign Strategist"]

6. filter() – Selecting Strong Allies

Only dedicated leaders were chosen using filter().

• filter() creates a new array by keeping only the elements that meet a condition.

javascriptCopyEditlet strongLeaders = bpjLeaders.filter(leader => leader !== "JP Nadda");
console.log(strongLeaders);  
// ["Amit Shah", "Yogi Adityanath"]

7. find() – Searching for a Key Alliance Partner

BPJ searched for a reliable Alliance using find().

find() returns the first element that meets a condition.

javascriptCopyEditlet allies = ["Nitish Kumar", "Chirag Paswan", "Eknath Shinde"];
let allianceLeader = allies.find(leader => leader === "Nitish Kumar");
console.log(allianceLeader);  
// "Nitish Kumar"

8. splice() – Removing a Weak Alliance

BPJ removed Chirag Paswan from the alliance using splice().

splice() removes elements at a specific index.

javascriptCopyEditlet index = allies.indexOf("Chirag Paswan");
allies.splice(index, 1);  
console.log(allies);  
// ["Nitish Kumar", "Eknath Shinde"]

9. concat() – Forming the NDA(Next-gen Development) Alliance

To maximize strength, BPJ merged leaders and allies into one strong alliance using concat().

concat() combines multiple arrays into one.

javascriptCopyEditlet ndaAlliance = bpjLeaders.concat(allies);
console.log(ndaAlliance);  
// ["JP Nadda", "Amit Shah", "Yogi Adityanath", "Nitish Kumar", "Eknath Shinde"]

10. reduce() – Measuring the Strength of the Alliance

BPJ calculated the total strength of their alliance using reduce().

reduce() accumulates values by applying a function to each element.

javascriptCopyEditlet totalStrength = ndaAlliance.reduce((acc, leader) => acc + leader.length, 0);
console.log(totalStrength);  
// Total sum of characters in all names

The Victory

JavaScript + Politics = A Winning Strategy!