Why we are using =(Equal to) before the function?

Question

= load ( 
 local!text , 
 a!textField ( 
 value: local!text , 
 saveInto: local!text 
 ) 
 )

Yogesh Pavuluru · Answer

Hi tirumalar0001 , 
 
It's not necessary to use "=" in front of any function if you are writing code in expression rule or Interface or in any expression editor of process model. But one thing, if you write code within expression editor in the process model, then an "=" will be automatically added in front of the first letter of the code. 
 
As a conclusion, no need to worry about =(Equal to) in front of the code/function. It will work perfectly even though you don't use =(Equal to) in front of the function.