And and or are useful operators.
Ruby if or condition.
If expressions are used for conditional execution.
The if block statement is executed if condition is true otherwise else block statement is executed.
A b is not true.
Stock 10 if stock 1 puts sorry we are out of stock end notice the syntax.
If else if syntax.
The simplest form of flow control and logic in ruby is called an if statement or technically speaking in ruby since everything is an expression an if expression.
In perl they were largely used to modify control flow similar to the if and unless statement modifiers.
Notice ruby uses elsif not else if nor elif.
Ruby conditional statements conditional statements are also known by the name of conditional processing or conditional expressions.
Checks if the value of left operand is greater than the value of right operand if yes then condition becomes true.
Executes code if the conditional is true.
This is what needs to be true for the code inside the condition to work.
They are used to perform a certain set of instructions if a specified condition is met.
A common perl idiom is.
It s important to get it right.
If var 10 print variable is 10 else print variable is something else end.
These if experssions essentially check whether a condition is true or not.
If var 10 print variable is 10 end.
Here s the key difference between ruby and most other languages.
The stock 1 part is what we call a condition.
Checks if the value of two operands are equal or not if values are not equal then condition becomes true.
Ruby if else statement tests the condition.
The values false and nil are false and everything else are true.
The ruby language has a very simple control structure that is easy to read and follow.
The conditions are generally of boolean type and return either true or false as the result.
In ruby you do this using if statements.
A b is true.
If something is true the condition then you can do something.