JavaScript: Print the contents of the current window
JavaScript Basic: Exercise-2 with Solution
Write a JavaScript program to print the current window contents.
Sample Solution:
HTML Code:
<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8 />
<title>Print the current page.</title>
</head>
<body>
<p></p>
<p>Click the button to print the current page.</p>
<button onclick="print_current_page()">Print this page</button>
</body>
</html>
JavaScript Code:
function print_current_page()
{
window.print();
}
Sample Output:
Click the button to print the current page.
Explanation:
window.print(): The window object represents a window containing a DOM document; the document property points to the DOM document loaded in that window, window.print() is used to open the Print Dialog to print the current document.
ES6 Version:
function print_current_page()
{
window.print();
}
Live Demo:
See the Pen JavaScript current day and time - basic-ex-2 by w3resource (@w3resource) on CodePen.
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JavaScript: Tips of the Day
Parse an HTTP Cookie header string and return an object of all cookie name-value pairs
Example:
const parseCookie = str => str .split(';') .map(v => v.split('=')) .reduce((acc, v) => { acc[decodeURIComponent(v[0].trim())] = decodeURIComponent(v[1].trim()); return acc; }, {}); console.log(parseCookie('foo=bar; equation=E%3Dmc%5E2')); // { foo: 'bar', equation: 'E=mc^2' }
Output:
[object Object] { equation: "E=mc^2", foo: "bar" }
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