You can put the Map contents into a Set or List and then do your loop. Schema.DescribeSObjectResult objSchema = Account.sObjectType.getDescribe (); Map<String, Schema.SObjectField> fieldMap = objSchema.fields.getMap ();
Full Answer
How do I iterate through a map in Salesforce?
There are many methods that can be used in Apex. One method in particular can be used to loop through a map in Apex, this method is keySet(). The keyset method returns all of the keys in the map and you can access the value associated with the key inside a loop.
Can we use for loop in map?
for loop can be with no content, no such concept exist in map() function.
How do I iterate map keySet in Apex?
“how to iterate map in apex salesforce” Code Answerfor(Id id: mapname. keyset()){Set
Can we insert map in Salesforce?
Use myMap. values() to "flatten" the map into a List (in your case list of accounts), insert the whole list. Such flattening just keeps references so the original accounts in the map will be silently updated with the generated record Id.
Can I use map instead of forEach?
The main difference between map and forEach is that the map method returns a new array by applying the callback function on each element of an array, while the forEach method doesn't return anything. You can use the forEach method to mutate the source array, but this isn't really the way it's meant to be used.
What is faster for or map?
As we can see in the picture, the built-in map function is much faster than the for-in loop. To be precise, it is 1.63x faster. There is no doubt that we should use a built-in map function.
How do you iterate a map in lightning component?
Here you go….. In this apex class ,you have @AuraEnabled , fetchMapvalues() method which return type is Map type....Iterate map values in Salesforce Lightning component.Attribute NameTypeDescriptionitemsListRequired. The collection of data to iterate over.varStringRequired. The variable name to use for each item inside the iteration.2 more rows•Sep 15, 2018
How do I convert a map value to a list?
Java program to convert the contents of a Map to listCreate a Map object.Using the put() method insert elements to it as key, value pairs.Create an ArrayList of integer type to hold the keys of the map. ... Create an ArrayList of String type to hold the values of the map. ... Print the contents of both lists.
Can map have duplicate keys in Salesforce?
Features of Map KEY can't be duplicate like SET. VALUE can be duplicate like LIST. We can have keys or values of any data type (eg: string, integer, etc).
How does map work in Salesforce?
A map is a collection of key-value pairs where each unique key maps to a single value. Keys and values can be any data type—primitive types, collections, sObjects, user-defined types, and built-in Apex types.
What are the methods of map in Salesforce?
Map Methodsclear() Removes all of the key-value mappings from the map.clone() Makes a duplicate copy of the map.containsKey(key) Returns true if the map contains a mapping for the specified key.deepClone() ... equals(map2) ... get(key) ... getSObjectType() ... hashCode()More items...
How do I show map values in Salesforce?
Apex Map In SalesForceLog into your Salesforce account and click the "Developer Console".The general syntax for Apex Map is, ... Next, we can add some predefined important methods like put(key, value), get(key), keySet(), values(), size(), clone(), and clear() to the Apex Map.More items...•