- 2 How to check if a global variable is defined?
- 3 How to get the values of a variable in PowerShell?
- 4 Which is the default for the get variable cmdlet?
- 5 Do you need to cast sobject variable to specific sobject type?
- 6 What kind of data type do you use for sobjects?
- 7 How to create specific sobject variables in Salesforce?
Knowing the possible states of variables, let’s consider the techniques to find whether a variable is defined or not. The typeof operator determines the variable’s type. typeof myVar can evaluate to one of the values: ‘boolean’, ‘number’, ‘string’, ‘symbol’, ‘object’, ‘function’ and ‘undefined’.
How to check if a global variable is defined?
You can use this idea to determine if the global variable myGlobalVar is defined: simply check the global object for corresponding property existence: window.hasOwnProperty (‘myGlobalVar’). For example, here’s how to check if the browser defines an IntersectionObserver variable:
How to get the values of a variable in PowerShell?
The Get-Variable cmdlet gets the PowerShell variables in the current console. You can retrieve just the values of the variables by specifying the ValueOnly parameter, and you can filter the variables returned by name.
Which is the default for the get variable cmdlet?
A number relative to the current scope (0 through the number of scopes, where 0 is the current scope and 1 is its parent) Local is the default. For more information, see about_Scopes. Indicates that this cmdlet gets only the value of the variable.
Do you need to cast sobject variable to specific sobject type?
When you’re dealing with generic sObjects, you sometimes need to cast your sObject variable to a specific sObject type. One of the benefits of doing so is to be able to access fields using dot notation, which is not available on the generic sObject.
What kind of data type do you use for sobjects?
Typically, you use the specific sObject data type, such as Account for a standard object or Book__c for a custom object called Book, when working with sObjects. However, when you don’t know the type of sObject your method is handling, you can use the generic sObject data type.
How to create specific sobject variables in Salesforce?
Create and use specific sObject variables. Cast a generic sObject to a specific sObject. Because Apex is tightly integrated with the database, you can access Salesforce records and their fields directly from Apex. Every record in Salesforce is natively represented as an sObject in Apex.