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Let's try out some simple examples. Enter the following line of code into the Console Window.
You can place it anywhere on the line as long as nothing is selected. Either of the two following actions will cause Acrobat to run the code. If your keyboard has a number pad, you can use the Enter key on the number pad without pressing the Control Command on Mac key. Macintosh's have the additional issue of keyboard configuration mentioned earlier.
Acrobat displays the result of the execution on the next available line, also shown in Figure 4. Sometimes the result of an operation is not as clean or obvious as a number. Let's try something that doesn't have such a well-defined result.
Instead, as shown in Figure 5, it displays the word "Infinity. It is much easier to find this kind of issue by executing individual lines in the Console Window where you can see the results immediately, than it is to debug it from a field-calculation script. The next line of example code is something that might be used in a real script.
It assigns a simple addition to a variable named 'sum'. The calculation is executed and applied to the declared variable, sum. However, the first and primary operation on the line is the variable declaration, so this is the operation that returns a value to the Console Window.
We can use it anytime we want to execute code for any purpose. Two uses for the Console Window besides code testing that immediately come to mind are automation and analysis.
For example, suppose you wanted to know the exact border color of a text field so you could use the same color in another location. Assuming the current document has a field with the correct name on it, the following code displays the raw color value in the Console Window: this. Remember, Acrobat attempts to convert all results into text. Arrays are converted to text by converting each individual array element into a text string, so the result would look something like the following line when it is displayed in the Console Window.
We've just found out something that would have taken us just a little more effort to find out using the Acrobat property dialogs, and the information is in a very usable format.
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We can easily copy and paste this information to accomplish some other purpose, for example applying the color to another field with this line of code: this. Suppose a document needs to be checked for branding purposes, i.
It has to be done all at once. Notice that in the loop there is a function called console. It's in the fourth line.
This function writes text to the Console Window and it will be discussed in the next section. Here's an example of a function that does not have an easy equivalent on the regular Acrobat menus and toolbars.
Form submission: Document and resource loading. DOMContentLoaded, load, beforeunload, unload. Resource loading: List of extra topics that are not covered by first two parts of tutorial. There is no clear hierarchy here, you can access articles in the order you want. Frames and windows. Popups and window methods. Cross-window communication.
The clickjacking attack. Binary data, files. ArrayBuffer, binary arrays.
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TextDecoder and TextEncoder. Network requests.
Download progress. Cross-Origin Requests.
From the orbital height. Template element. Shadow DOM slots, composition. Shadow DOM styling. Shadow DOM and events.
Regular expressions. Patterns and flags. Methods of RegExp and String. Character classes. Escaping, special characters. Sets and ranges [ Greedy and lazy quantifiers. Backreferences in pattern: Alternation OR.
Form submission: Rest parameters and spread operator. It will provide more job opportunity and help you to become full stack developer, which most of the startup and small company look after.