line-diff

Compare strings line by line.

☁️ Installation

$ npm i --save line-diff

📋 Example

// Dependencies
var LineDiff = require("line-diff")
  , Fs = require("fs")
  ;

// Show differences between the two files
console.log(
    LineDiff(
        Fs.readFileSync(__dirname + "/1.txt", "utf-8")
      , Fs.readFileSync(__dirname + "/2.txt", "utf-8")
    ).toString()
);

console.log(
    LineDiff(
        Fs.readFileSync(__dirname + "/1.txt", "utf-8")
      , Fs.readFileSync(__dirname + "/2.txt", "utf-8")
      , 3
    ).toString()
);

❓ Get Help

There are few ways to get help:

1. Please post questions on Stack Overflow. You can open issues with questions, as long you add a link to your Stack Overflow question.
2. For bug reports and feature requests, open issues. 🐛
3. For direct and quick help from me, you can use Codementor. 🚀

📝 Documentation

Change(oldLine, addedLine, sensitivity)

A private function to compare two lines.

Params

• String oldLine: The old line value.
• String addedLine: The new line.
• Number sensitivity: The diff sensitivity.

Return

• Change The Change object:
• _ (Array): An array with the old line and the new line.
• changes (Number): How many changes are there, calculated with the levenshtein distance algorithm.
• modified (Boolean): A boolean value representing if the old line was modified or not.

Diff(oldLines, newLines, sensitivity)

Compares strings line by line.

Params

• String|Array oldLines: The old lines.
• String|Array newLines: The new lines.
• Number sensitivity: A number representing how many changes should be there to consider that a line was changed (default: 0).

Return

• Diff The Diff object containing:
• old_lines (Array): The old lines.
• new_lines (Array): The new lines.
• sensitivity (Number): The diff sensitivity.
• changes (Array): An array of Change objects.
• toString (Function): A function to stringify the diff.

toString()

Converts the lines comparison into a string.

Return

• String The stringified diff.

😋 How to contribute

Have an idea? Found a bug? See how to contribute.

💖 Support my projects

I open-source almost everything I can, and I try to reply everyone needing help using these projects. Obviously, this takes time. You can integrate and use these projects in your applications for free! You can even change the source code and redistribute (even resell it).

However, if you get some profit from this or just want to encourage me to continue creating stuff, there are few ways you can do it:

• Starring and sharing the projects you like 🚀

• —You can make one-time donations via PayPal. I'll probably buy a coffee tea. 🍵

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• Bitcoin—You can send me bitcoins at this address (or scanning the code below): 1P9BRsmazNQcuyTxEqveUsnf5CERdq35V6

  

Thanks! ❤️

💫 Where is this library used?

If you are using this library in one of your projects, add it in this list. ✨

• diffr—CLI diff tool for files, text, and JSON with human readable output.

📜 License

MIT © Ionică Bizău