Apex Triggers - 37 (Trigger Interview Scenario)

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[@agamyashvant5545]

great way of excuting map, one shot two birds(oppotunity and contact)!!!!!

[@goldylodhi2116]

Very helpful scenerios

[@sfdcninjas]

Glad you like them!

[@goldylodhi2116]

Thanks sir

[@sfdcninjas]

Welcome

[@amitbagade3277]

Is it possible to provide code of all triggers in one pdf document?

[@sfdcninjas]

Yes amit bhai i have planned to do it after completion of series i mean aftee 50th scenario

[@bbupdates7269]

Can you please try to provide without map. It's very difficult to use map. I saw all your previous videos. Try to use list set only. Or eleae make one video on MAP.... Please

[@sfdcninjas]

Hey buddy using map is very useful it will always helps in the scenario like avoiding nested for loops. that’s why you should learn how we can use maps

[@bbupdates7269]

@@sfdcninjas but iam not understanding map exactly. Can you make one video on MAP. How it's work, how to use, how to implinent. Please

[@nagarajaavula6841]

I also feel same 😌

[@sfdcninjas]

don’t worry i will explain use of map with a very simple example in next scenario don’t forget to watch it

[@sfdcninjas]

Guys please check out this explanation if you still find issue while working with maps i will explain map in upcoming videos but as of now please try to understand working of maps.
In Apex programming, a Map collection is a way to store data in key-value pairs. Think of it like a dictionary where each entry has a unique key and a corresponding value. Here's a simple explanation with an example:
Let's say you want to keep track of students and their ages. With a Map, you can store the students' names as keys and their ages as values. Here's how you would do :
// Creating a Map to store student names and ages
Map studentAgesMap = new Map();
// Adding data to the Map
studentAgesMap.put('John', 18);
studentAgesMap.put('Emily', 20);
studentAgesMap.put('Michael', 17);
// Accessing values from the Map using keys
Integer johnAge = studentAgesMap.get('John'); // This will return 18
// Updating a value in the Map
studentAgesMap.put('Emily', 21); // Updating Emily's age to 21
// Removing an entry from the Map
studentAgesMap.remove('Michael'); // Removing Michael from the Map
// Checking if a key exists in the Map
Boolean hasEmily = studentAgesMap.containsKey('Emily'); // This will be true
// Getting all the keys and values from the Map
List names = studentAgesMap.keySet(); // Returns a list of names (John, Emily)
List ages = studentAgesMap.values(); // Returns a list of ages (18, 21)