https://github.com/mikeibberson/comparisons

String expressions for comparing object properties
https://github.com/mikeibberson/comparisons

node-js string-matching

Last synced: 19 days ago
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String expressions for comparing object properties

• Host: GitHub
• URL: https://github.com/mikeibberson/comparisons
• Owner: MikeIbberson
• License: mit
• Created: 2019-11-30T17:56:49.000Z (almost 5 years ago)
• Default Branch: master
• Last Pushed: 2024-01-22T20:37:27.000Z (10 months ago)
• Last Synced: 2024-10-12T12:16:01.589Z (about 1 month ago)
• Topics: node-js, string-matching
• Language: JavaScript
• Homepage: https://www.npmjs.com/package/comparisons
• Size: 485 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 12
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        

🧮 Comparisons









 


Currently, expressions support =, >=, <=, >, < and != operators. Optionally, you can include a second constructor argument for changing the locale (the default is "en"). Any expressions that do not match a recognized operation get stripped out and are assumed to pass.


For simply matching if a property exists, use the =* expression. Likewise, use the ! flag on the key name to check for missing/empty values.


Don't worry about type casting—we'll handle that for you.


Example usage


```Bash

  # Or use npm install

  yarn add comparisons

```

```Javascript

const Comparison = require('comparisons');

const tests = ['foo=bar', 'num>=2', '!quuz'];

const stub = { foo: 'bar', num: 3 };

const runner =  new  Comparison(tests);

runner.eval(stub); // returns true or false

runner.query(); // returns a Mongo friendly query

```