The while loop is a control structure in Tipcontrol and similar to languages like C++,it is used to repeat a block of code as long as a specified condition evaluates to true. It is particularly useful when the number of iterations is not known beforehand and should be determined dynamically at runtime.
Structure of a while Loop
Components:
- Condition: An expression evaluated before each iteration of the loop. If the condition evaluates to
true(non-zero), the code block inside the loop is executed. If it evaluates tofalse(zero), the loop terminates. - Code Block: The block of code that executes during each iteration while the condition is true. This block is enclosed in curly braces
{}.
Simple Example
counter = 1; // Initialization
// Loop while counter is less than or equal to 5
while (counter <= 5) {
lib.log(“Count: “+ counter);
counter+=1; // Update the counter
};
Explanation:
- Initialization:
counter = 1;initializes a counter variable. - Condition:
counter <= 5checks if the counter is less than or equal to 5. - Code Block: The statement
lib.log("Count: “+ counter);is executed as long as the condition is true. - Update:
counter+=1increments the counter at the end of each iteration to eventually make the condition false and terminate the loop.