Episode 2 conditional flows & loops

Jan 12, 2019Download as PPTX, PDF0 likes3,289 views

Conditional Flow in Salesforce and types of Loop. Episode 2 details are here - http://pathtocode.com/salesforce/developer/episode-2-conditional-statements-loops/

Path to Code
Begin Your Salesforce Coding Adventure

Episode 2
Conditional Statements, Ternary Operators, Loops

Enterprise Solutions Architect
Global Salesforce Community Speaker
4x Salesforce Certifications
Jigar Shah

Agenda
• Need for Control Flow Statements
• Control Flow Statements
• Iteration using Loops
• When to use List vs Set vs Hash map?
• Trailhead Modules
• Q&A

Some Housekeeping Rules…
• Mute your mic
• Keep adding questions in Zoom Q&A Window
• No questions are silly!
• Questions will be answered in the last 15 mins of this session

Need for Control Flow Statements
Conditional
Execution
Comparison
of Data
Computation
of Data
Traversal
over Data
Elements in
Collections
Repeated
Execution

Control Flow Statements
Control Flow Statements govern the behavior of your Apex
code
Types of Control Flow Statements
• Conditional
• Iterative

Conditional Statements in Apex
1. If Else…
2. Switch Statements
3. Ternary Operators

If Else Statements
if(Boolean Condition){
//Code Block
}
else{
//Code Block
}
if(Boolean Condition1){
//Code Block
}
else if(Boolean Condition2){
//Code Block
}
else if(Boolean Condition3){
//Code Block
}
else{
//Code Block (Optional Default Condition)
}

Ternary Operators
• Uses ? : (Boolean Condition) ? Value if True : Value if False
• Left Associative
• Short-hand for if-then-else statements.

Switch Statements
switch on expression{
when value1, value2{
//Code Block
}
when value3{
//Code Block
}
when value4{
//Code Block
}
}
• Match 1 of the several available values
• Switch expression can have – String, Sobject,
Enum, Integer, Long, Methods
• Apex types are Nullable

Iterative Statements
5 Types of Procedural Loops in Apex
 Do {Code Block} While (Boolean Exit Condition)
 While (Boolean Exit Condition)
 For
 For (Initialization; Boolean Exit Condition; Increment) {Code
Block}
 For (Variable : Array or Set) {Code Block}
 For (Variable : [Inline SOQL Query]) {Code Block}

Choosing List Vs Set Vs Map
• List
• Map
• Set

Resources
 Control Flow Statements
 Expressions & Operators
 Switch Statements
 Loops

Trailhead Modules
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Episode 2 conditional flows & loops

1. Path to Code Begin Your Salesforce Coding Adventure

2. Episode 2 Conditional Statements, Ternary Operators, Loops

3. Enterprise Solutions Architect Global Salesforce Community Speaker 4x Salesforce Certifications Jigar Shah

4. Agenda • Need for Control Flow Statements • Control Flow Statements • Iteration using Loops • When to use List vs Set vs Hash map? • Trailhead Modules • Q&A

5. Some Housekeeping Rules… • Mute your mic • Keep adding questions in Zoom Q&A Window • No questions are silly! • Questions will be answered in the last 15 mins of this session

6. Need for Control Flow Statements Conditional Execution Comparison of Data Computation of Data Traversal over Data Elements in Collections Repeated Execution

7. Control Flow Statements Control Flow Statements govern the behavior of your Apex code Types of Control Flow Statements • Conditional • Iterative

8. Conditional Statements

9. Conditional Statements in Apex 1. If Else… 2. Switch Statements 3. Ternary Operators

10. If Else Statements if(Boolean Condition){ //Code Block } else{ //Code Block } if(Boolean Condition1){ //Code Block } else if(Boolean Condition2){ //Code Block } else if(Boolean Condition3){ //Code Block } else{ //Code Block (Optional Default Condition) }

11. Operators Fuel your decisions!

12. Operators

13. Ternary Operators • Uses ? : (Boolean Condition) ? Value if True : Value if False • Left Associative • Short-hand for if-then-else statements.

14. Switch Statements switch on expression{ when value1, value2{ //Code Block } when value3{ //Code Block } when value4{ //Code Block } } • Match 1 of the several available values • Switch expression can have – String, Sobject, Enum, Integer, Long, Methods • Apex types are Nullable

15. Iterative Statements - Loops

16. Iterative Statements 5 Types of Procedural Loops in Apex  Do {Code Block} While (Boolean Exit Condition)  While (Boolean Exit Condition)  For  For (Initialization; Boolean Exit Condition; Increment) {Code Block}  For (Variable : Array or Set) {Code Block}  For (Variable : [Inline SOQL Query]) {Code Block}

17. Choosing List Vs Set Vs Map • List • Map • Set

18. Resources  Control Flow Statements  Expressions & Operators  Switch Statements  Loops

19. Trailhead Modules Platform Development Basics Apex Basics & Database Developer Console Basics

20. Q & A

21. Thank You

22. Subscribe

Episode 2 conditional flows & loops

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