To get a value from a list, give it an index to pull it out, via the [] accessors. Then you access the object directly. For example
Full Answer
How to retrieve index of an element in list in Salesforce?
There is no method either in list or set class in salesforce to retireve the index of an element and the remove method requires an integer as a parameter which remove the entry at that particular index. If you need to know the index of an element in list or set, you need to loop through all of the collection elements and find it out.
How to find the index of an element in a list?
If you need to know the index of an element in list or set, you need to loop through all of the collection elements and find it out. Now, by end of loop you will have all the cases with desired values left in the map, you can collect them back using values () method and udpate them.
Is list () faster than square brackets in Salesforce?
I don't know if Salesforce changed its algorithms, but I just tested it, both in my Sandbox and Production, and it turns out the method List.get () is almost always faster than square brackets [i]. My first attempt, running List.get () prior to running square bracket:
Is it possible to access the index inside a set?
Is it possible to access the index inside a set? Is there a way to access the index of the set like so ? Show activity on this post. You can't index a Set like you can a List/Array. You can perform typical set operations - such as check if the Set contains an element by value, or remove an element by value.
How do you find the index of an element in a list in Salesforce?
Find Index of Element in Salesforce ListList
How do you get an index of an element in a list C#?
To get the index of an item in a single line, use the FindIndex() and Contains() method. int index = myList. FindIndex(a => a.
How do I find 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...•
What is list list SObject in Salesforce?
Lists of sObjects can be used for bulk processing of data. You can use a list to store sObjects. Lists are useful when working with SOQL queries. SOQL queries return sObject data and this data can be stored in a list of sObjects.
How do you get the index of an item in a list?
Use List Comprehension and the enumerate() Function to Get the Indices of All Occurrences of an Item in A List. Another way to find the indices of all the occurrences of a particular item is to use list comprehension. List comprehension is a way to create a new list based on an existing list.
Do lists have indexes C#?
The IndexOf method returns the first index of an item if found in the List. C# List
How do you find the value of a map?
HashMap get() Method in Java get() method of HashMap class is used to retrieve or fetch the value mapped by a particular key mentioned in the parameter. It returns NULL when the map contains no such mapping for the key.
How do I convert a list to a map in Salesforce?
Converting List to Map://Converting list to map.Map
What is keySet in Salesforce?
keySet() Returns a set that contains all of the keys in the map. put(key, value) Associates the specified value with the specified key in the map.
How do I query sObject in Salesforce?
If you have the sobject name in a string, e,g, 'sobjname', you can then query back the record via something like: String queryStr='select id from ' + sobjname; List
What is list list sObject >>?
It means you have a list of a list of objects such as a list of account list, contact list, opportunity list. it is use main in SOSL, or also known as global search. For example when doing a global search on any name.
How do I get sObject field in Apex?
It states in Salesforce Apex docs that I can get fields for a particular SObject (standard or custom) in the following way: Map
What is list method?
The list methods are all instance methods, that is, they operate on a particular instance of a list. For example, the following removes all elements from myList:
Why is the first element of a list null?
In the following example, the list has three elements. When the list is sorted, the first element is null because it has no value assigned. The second element and third element have values of 5 and 10.
How to create a new instance of a list class?
Creates a new instance of the List class by copying the elements from the specified list. T is the data type of the elements in both lists and can be any data type.
What is the operator used to compare the elements of a list?
Two lists are equal if their elements are equal and are in the same order. The == operator is used to compare the elements of the lists.
How many items are included in an output?
Up to 10 items per collection are included in the output, followed by an ellipsis (…).
What does "set the length of a list to zero" mean?
Removes all elements from a list, consequently setting the list's length to zero.
How to reference an element of a one-dimensional list of primitives?
To reference an element of a one-dimensional list of primitives or sObjects, you can also follow the name of the list with the element's index position in square brackets as shown in the example.
