4th of July: What is open, what is closed. The 4th of July holiday is on a Saturday this year. That means government offices will observe the holiday on Friday, July 3. Here's a quick rundown of what we were able to determine regarding what's closed July 3-4. PennDOT: All driver license and photo license centers will be closed July 4.
Functions are one of the fundamental building blocks in JavaScript. A function is a JavaScript procedureâa set of statements that performs a task or calculates a value. To use a function, you must define it somewhere in the scope from which you wish to call it. See also the exhaustive reference chapter about JavaScript functions to get to know the details.
Invoking a JavaScript Function. You have already learned that the code inside a JavaScript function will execute when something invokes it. The code in a function is not executed when the function is defined. It is executed when the function is invoked. Some people use the term call a function instead of invoke a function.