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Return

In this section, we will guide you on how to use the Return block.

Use Cases

The return statement is a crucial keyword in JavaScript functions, and it serves two main purposes:

  1. Returning a value: Sends the result of a function's computation back to the caller.
  2. Terminating a function: As soon as a return statement is executed, the function stops immediately, and the return value is sent out.

Here, we will focus only on the second use case since the first one is not applicable in Tapicker.

Here’s a function that performs a division operation:

function divide(a, b) {
  if (b === 0) {
    return 'Divisor cannot be zero'
  }
  const result = a / b
  console.log(result)
  return result
}

If the value of b is 0, the function returns an error message, and the following code is skipped. This behavior is somewhat similar to the continue statement in loops.

Now, let’s see another example of returning from a loop:

const items = ['a', 'b', 'c']

for (let [index, value] of Object.entries(items)) {
  if (value === 'b') {
    return
  }
  console.log(index, value)
}

Yes, in this case, return can be used in place of break.

Moreover, it can return from nested loops:

const items = ['a', 'b', 'c']

for (let [outerIndex, outerValue] of Object.entries(items)) {
  for (let [innerIndex, innerValue] of Object.entries(items)) {
    if (outerValue === 'a' && innerValue === 'b') {
      return
    }
    console.log(outerValue, innerValue)
  }
}

Unlike break, return can exit multiple loops, whereas break only exits the innermost loop.

In Tapicker, Return behaves similarly to the examples above.

return

Basic Return

If you wish to stop the workflow, you can do so like in the following example. Typically, it is not used alone but rather with the Condition block, unless you are debugging.

basic-return

As shown in the image, after executing the Set Variables block, the workflow encounters a Return, and the process stops. The Sleep block will not be executed.

Return Scope

Return is subject to scope limitations. In Tapicker, the scopes are as follows:

  • Root
  • Tab
  • Window

When a return occurs, if neither Tab nor Window is encountered, the return continues to the Root.

Returning within a Tab

Here is an example of a return within a tab. Next, we will explain how it works so you can better understand it.

tab-return

Note the annotations in the image. We’ve clearly marked the execution sequence: when the workflow reaches Step 4, a return occurs, skipping the Sleep block. After the New Tab block is executed, the workflow continues to Step 5 with the Print Log block.

Returning within a Window

Returning within a window behaves the same way as within a tab, so we won't elaborate further here.

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