0.4.0 • Published 7 years ago
logic-machine v0.4.0
Logic machine
A logic machine for JS.
Note: if an operator
or an expected
is an undefined
then logic block always return false.
example
var logic = require('logic-machine');
var src = [
'or', // one is true
{ expected: 7, operator: 'gt', value: 5 }, // false
{ expected: 3, operator: 'eq', value: 5 }, // false
[
'and', // all is true
{ expected: 6, operator: 'lt', value: 5 }, // true
{ expected: 5, operator: 'lte', value: 5 }, // true
[
'or', // one is true
{ expected: 5, operator: 'lt', value: 5 }, // false
{ expected: 5, operator: 'lte', value: 5 }, // true
] // true
] // true
];
console.log(logic(src)); // true
var logic = require('logic-machine');
var src = [
'or', // one is true
{ expected: 7, operator: 'gt', value: 5 }, // false
{ expected: 3, operator: 'eq', value: 5 }, // false
// true (by default, some of the array)
{ expected: 5, operator: 'eq', value: [4,5,6] },
// true (arr is [{ value: 4, result: false }, { value: 5, result: true }, { value: 6, result: false }])
{ expected: 5, operator: 'eq', value: [4,5,6], getResult: arr => !!arr[1].result },
// false (arr is [{ value: 5, result: true }, { value: 4, result: false }, { value: 6, result: false }])
{ expected: 5, operator: 'eq', value: [5,4,6], getResult: arr => !!arr[1].result },
];
console.log(logic(src)); // true
operators
Logic machine has some operators:
- eq: value equals expected
- neq: value not equals expected
- gt: value greaters than expected
- gte: value greaters than or equals expected
- lt: value lowers than expected
- lte: value lowers than or equals expected
- contain: value string contains expected string
- notContain: value string not contains expected string
- startWith: value string starts with expected string
- endWith: value string ends with expected string
- regexp: value string matches expected (as a regular expression)
- includes: value (as an array) includes expected (as a string)
- nincludes: value (as an array) not includes expected (as a string)
install
With npm do:
npm install logic-machine
test
With npm do:
npm test