if

Category: Control

Subcategory: Conditionals

Complexity: Beginner

Description

Allows the program to make a decision about which code to execute. If the test evaluates to true, the statements enclosed within the block are executed and if the test evaluates to false the statements are not executed.

Related

Example

Code:
for (int i = 5; i < height; i += 5) {
  stroke(255);   // Set the color to white
  if (i < 35) {  // When 'i' is less than 35...
    stroke(0);   //...set the color to black
  }
  line(30, i, 80, i);
}
Preview: