for loops

Syntax (for loops)	Example
`for (index=startValue; endCondition; incIndex) { // Code to execute }`	`for (var i=0; i<10; i++) { logger.info("i = " + i); }`

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for each…in loops

These loops are part of the E4X standard. Unlike other for loop constructs, for each…in loops usually have no explicit counter; they essentially say "do this to everything in this set" rather than "do this X times." This avoids possible off-by-one errors and makes code easier to read. These loops are used to iterate through elements in an array (or collection) or in the property values of an object. Syntax (for each...in loops) Example for each (var in object) { // Code to execute} var sources = new Array ();sources [0] = "Customer 1";sources [1] = "Customer 2";sources [2] = "Customer 3";for each (src in sources) { logger.info(src);} Parent topic: Loops and Iterations

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while loops

These loops are control-flow statements that let code execute repeatedly based on a given Boolean (true/false) condition. A while loop can be thought of as a repeating "if" statement and consists of a block of code and a condition. Upon evaluation, if the condition is true, the code in the block is executed, repeating until the condition becomes false. A >while loop checks the condition before the block is executed, in contrast to a do…while loop, which tests the condition after the block is executed. Syntax (while loops) Example while (condition) { // Code to execute} var index = 0;var found = false;while (!found) { if (myArray[index++] == "ABC") { found = true; }} Parent topic: Loops and Iterations

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do…while loops

These loops let code execute at least once based on a Boolean (true/false) condition. A do...while loop consists of a process symbol and a condition. The code in the block executes, and the condition is evaluated. If the condition is true, the code in the block is executed again, repeating until the condition becomes false. A do…while loop checks the condition after the block is executed, in contrast to the while loop, which tests the condition before the block is executed. It is possible—and sometimes desirable—for the condition to always evaluate as true, which creates an infinite loop. When such a loop is created purposely, there is usually another control structure, such as a break statement, that terminates the loop. Syntax (do...while loops) Example do { // Code to execute} while (conditional); var index = -1;do { var val = getValue(++index);} while (val != "ABC"); Parent topic: Loops and Iterations

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Loops and Iterations

A loop is a type of programming-language statement that lets code be executed repeatedly; that is, a loop is a series of iterations. In programming language, there are four types of loops: for loops for each…in loops while loops do…while loops An iteration is a single execution of the inner loop process. If you loop from 1 to 10, the code inside the loop will be executed for 10 iterations. Loops can be unconditionally exited with a break statement: break;. The continue statement: continue; unconditionally skips to the next iteration of the loop. for loops for each…in loops while loops do…while loops Parent topic: About JavaScript

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Conditional Statements

This example shows the basic syntax structure for conditional statements in JavaScript: if (condition1) { // Code to execute} else if (condition2) { // Code to execute} else { // Code to execute} Parent topic: About JavaScript

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For Loops

Velocity supports iterating through Lists / Collections / Arrays with the #foreach directive: <table>#foreach ($item in $list) <tr> <td>${item.name}</td> <tr>#end</table> Parent topic: Velocity Variable Replacement

for loops

Recommendations

for each…in loops

while loops

do…while loops

Loops and Iterations

Conditional Statements

For Loops

for loops

for each…in loops

while loops

do…while loops

Loops and Iterations

Conditional Statements

For Loops