comparejs implements JavaScript's comparison operators the way you would expect them to be.
comparejs implements JavaScript's comparison operators the way you would expect them to be.
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$ npm install comparejs
To use comparejs you need to reference it from your application by adding the following line:
const { compare } = require('comparejs');
If you use TypeScript, use the following code instead:
import { compare } from 'comparejs';
array, boolean, function, null, number, object, string and undefined.number and new Number().<, <=, > and >= by handling them as subsets.undefined correctly, as <= and >= are problematic in plain JavaScript.Now you are able to use the various comparison operators. All you need to do is access the compare object and use its functions:
| Operator | Alias | Description |
|---|---|---|
equal(left, right) | eq(left, right) | equal |
notEqual(left, right) | ne(left, right) | not equal |
lessThan(left, right) | lt(left, right) | less than |
lessThanOrEqual(left, right) | lte(left, right) | less than or equal |
greaterThan(left, right) | gt(left, right) | greater than |
greaterThanOrEqual(left, right) | gte(left, right) | greater than or equal |
identity(left, right) | id(left, right) | identity |
Please note that each comparison operator works on each combination of types and does what you would expect it to do.
For objects, there are special operators that compare by structure. Among other things, they can be used to verify objects against interfaces:
| Operator | Alias | Description |
|---|---|---|
equalByStructure(left, right) | eqs(left, right) | equal by structure |
notEqualByStructure(left, right) | nes(left, right) | not equal by structure |
lessThanByStructure(left, right) | lts(left, right) | less than by structure |
lessThanOrEqualByStructure(left, right) | ltes(left, right) | less than or equal by structure |
greaterThanByStructure(left, right) | gts(left, right) | greater than by structure |
greaterThanOrEqualByStructure(left, right) | gtes(left, right) | greater than or equal by structure |
Please note that these operators only work for objects. For any other type, they return false.
To build this module use roboter.
$ npx roboter
FAQs
comparejs implements JavaScript's comparison operators the way you would expect them to be.
We found that comparejs demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 5 open source maintainers collaborating on the project.
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