3
The easiest is to create a Set<Object[]>, something like the following:
Set<Object[]> alreadySeen = new Set<Object[]>();
List<Schedules__c> uniqueSchedules = new List<Schedules__c>();
for (Schedules__c schedules : SchedulesToProcess) {
Object[] key = new Object[]{ schedules.Month__c,
schedules.Year__c };
if (!...
2
There is no simple one-line method (as in JavaScript, where we can e.g. Array.prototype.flat), its most simple form would be:
List<Contact> allContacts = new List<Contact>();
for(List<Contact> contacts: accountWithContacts.values()) {
allContacts.addAll(contacts);
}
2
You can use JSON2Apex to generate the relevant code for parsing. The ideal solution for parsing is to use classes, which can then be deserialized to directly. I converted the code from there to a simpler implicit parser (because of an apparent bug in JSON2Apex), which gives us:
//
// Generated by JSON2Apex http://json2apex.herokuapp.com/
//
public class ...
1
The Map<Id, sObject> var = new Map<Id, sObject>(listOfsObject); (where sObject is any type of object, like Account or CustomObject__c) is semantically equal to:
Map<Id, sObject> var = new Map<Id, sObject>();
for(sObject record: listOfsObject) {
var.put(record.Id, record);
}
Note that you're not casting (explicit conversion from one ...
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