To easily work with directories and files on server, use the
fs-extra module.
It can be a drop in replacement for "fs" build-in module.
- Before using the "fs-extra" module, you have to install it. To install "fs-extra", run this code in command line interface:
npm install --save fs-extra
Then, you can use the fs-extra module in your Node.js projects, as a drop in replacement for native fs.
const fs = require('fs-extra');
Moving directory
A simple way to move a directory in Node.js it is to use the
fs.move(oldPath, newPath, callback) method of the
fs-extra module.
- Example: move 'dir_2/' directory from 'test/' to 'dirx/':
const fs = require('fs-extra');
fs.move('./test/dir_2/', './dirx/dir_2/', err => {
if(err) return console.error(err);
console.log('success!');
});
Copy directory
To copy a directory in Node.js, you can use the
copy() method of the
fs-extra module.
Example: Copy the 'dir_2/' directory from 'test/' to 'dirx/':
const fs = require('fs-extra');
fs.copy('./test/dir_2/', './dirx/dir_2/', err =>{
if(err) return console.error(err);
console.log('success!');
});
Daily Test with Code Example
HTML
CSS
JavaScript
PHP-MySQL
Which tag is used to add lists into <ul> and <ol> elements?
<dt> <dd> <li><ul>
<li>http://coursesweb.net/html/</li>
<li>http://coursesweb.net/css/</li>
</ul>
Which value of the "display" property creates a block box for the content and ads a bullet marker?
block list-item inline-block.some_class {
display: list-item;
}Which instruction converts a JavaScript object into a JSON string.
JSON.parse() JSON.stringify eval()var obj = {
"courses": ["php", "javascript", "ajax"]
};
var jsonstr = JSON.stringify(obj);
alert(jsonstr); // {"courses":["php","javascript","ajax"]}Indicate the PHP class used to work with HTML and XML content in PHP.
stdClass PDO DOMDocument$strhtml = '<body><div id="dv1">CoursesWeb.net</div></body>';
$dochtml = new DOMDocument();
$dochtml->loadHTML($strhtml);
$elm = $dochtml->getElementById("dv1");
echo $elm->nodeValue; // CoursesWeb.net