Process Text Files
Explore how to build a spell-check and correction feature for text file uploads using Node.js. Understand reading files line by line, detecting misspelled words, selecting corrections with string similarity algorithms, and handling asynchronous processes to improve business logic in web applications.
We'll cover the following...
Spell check is a helpful feature that users like to see on websites. We’ll develop a spell-check and correction feature for the text in our application. When we upload a text file, it’s automatically detected and processed before being saved to the database.
Node.js does not have a native method to perform spell checks on text or files. So, we’ll develop our own algorithm by performing these three steps:
- Read the text file line by line.
- Get similar words for each misspelled word.
- Choose the most similar word as a correction
Read Files
We use the built-in fs module to read the file, and a second ...