To read a text file containing CSS declarations using Node.js, you can use the built-in fs module. Here's an example code snippet:
const fs = require('fs'); fs.readFile('styles.css', 'utf8', (err, data) => { if (err) throw err; console.log(data); });
In this example, styles.css
is the name of the file you want to read. The readFile
method reads the file as a string using the utf8
encoding. The data parameter in the callback function contains the contents of the file.
To tally the occurrences of a specific value in the file, you can use regular expressions to search for the value and count the matches. Here's an example code snippet:
const fs = require('fs');
fs.readFile('styles.css', 'utf8', (err, data) => {
if (err) throw err;
const matchValue = 'red'; // the value you want to count occurrences of
const regex = new RegExp(matchValue, 'g');
const occurrences = (data.match(regex) || []).length;
console.log(`The value '${matchValue}' occurs ${occurrences} times in the file`);
});
In this example, the matchValue
variable contains the value you want to tally occurrences of. The new RegExp()
method creates a regular expression that matches the value globally ('g'
flag). The match()
method returns an array of matches, which is then counted using the length
property. Finally, the number of occurrences is logged to the console.
Asked: 2022-03-05 11:00:00 +0000
Seen: 9 times
Last updated: Jun 28 '21