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A JavaScript function is a block of code designed to perform a particular task. A JavaScript function is executed when "something" invokes it (calls it). Example. // Function to compute the product of p1 and p2. function myFunction (p1, p2) { return p1 * p2; } Try it Yourself » JavaScript Function Syntax.
26 kwi 2013 · Here is a function to print a PDF from an iframe. You just need to pass the URL of the PDF to the function. It will create an iframe and trigger print once the PDF is load. Note that the function doesn't destroy the iframe. Instead, it reuses it each time the function is call.
The function statement declares a function. A declared function is "saved for later use", and will be executed later, when it is invoked (called). In JavaScript, functions are objects, and they have both properties and methods.
21 maj 2020 · Example how we can start our function. const PDFStart = nameRoute => {} const startPdf = () => {PDFStart('../media/r.pdf')} window.addEventListener('load', startPdf);
8 maj 2023 · To display a PDF in HTML using Javascript, you'll also need a PDF viewer library. There are a few options out there, including PDF.js and Viewer.js. We'll be using PDF.js in our tutorial, but feel free to explore other libraries and see which one works best for your needs.
6 wrz 2021 · In this article, you will learn how to use the pdf-lib library in Node.js or JavaScript. We will embed images, use custom fonts and merge documents.
JavaScript functions are defined with the function keyword. You can use a function declaration or a function expression. Function Declarations. Earlier in this tutorial, you learned that functions are declared with the following syntax: function functionName (parameters) { // code to be executed. } Declared functions are not executed immediately.
