‘if’ Statements are a basic fundamental of programming languages.
It is used for creating condition checks.
conditional statements are features of a programming language which perform different computations or actions depending on whether a programmer-specified Booleancondition evaluates to true or false
This how to will introduce you to ‘if’ sentences and show you how you can use it within survey to go.

How it is constructed?

IF
(predicate)

THEN

(consequent)

ELSE

(alternative)

Within the ‘Predicate’ place you should write the condition.
Within the ‘Consequent’ you should write the code that will be executed if the condition is ‘true’.
Within the alternative you should write the code that will be executed if the condition is ‘false’.

Example

if(Answer(2)==5)

{

    SetAnswer(CurrQues,2);

}

else

{

    Prompt(“This is a test”);

}

This example does the following:
“IF the answer of question 2 equals to 5, 

set the answer of the current question with the value 2.

Else, Prompt a message saying ‘This is a test’ “.

‘IF’ sentences in SurveyToGo are useful within Start Scripts, End Scripts and ‘Advanced Scripts’.

Adding IF conditions

IF statements are not limited to a single condition and alternative—they can include multiple conditions and outcomes. However, it is recommended to limit an IF statement to no more than 10 alternatives. Some operating systems, such as Android, have limitations that may prevent larger IF statements from being processed correctly.

Example of multiple conditions:

if(Answer(1)==2 && Answer(2)==3)

{

    x=15;

}

else if(Answer(1)==3 && Answer(2)==4)

{

    Prompt(“This is a test”);

}

else if(Answer(1)==4 && Answer(2)==5)

{

    Prompt(“This is another test test”);

}

else

{

    Prompt(“Thats it”);

}

This does the following:
IF Answer of 1 is equal to 2 AND answer of 2 is equal to 3

-> input value 15 to x;

Else IF : Answer of 1 is equal to 3 AND answer of 2 is equal to 4

 -> Prompt:”This is a test”

Else IF : Answer of 1 is equal to 4 AND answer of 2 is equal to 5

-> Prompt:”This is another test”

Else: -> Prompt:”This is another test”

Using an ‘IF’ statement within an ‘IF’ statement

Similar to the movie Inception with the dreams, there can be an ‘if’ statement within another ‘if’ statement.