kas-elvirov

Markdown License badges

Collection of License badges for your Project's README file. Easily copy and paste the code under the badges into your Markdown files.

Notes

• Badges are made with Shields.io.
• This badges do not fully replace the license informations for your projects, they are only emblems for the README, that the user can see the License at first glance.

Want to add a License?

Comment this gist or write me an E-Mail (lukas@himsel.me)

kas-elvirov

import Nemathode from 'nemathode';
import { config } from './config';

const nemathode = Nemathode({
    ...config,
});

// doing same thing as `evaluate` but with love (don't forget being polite even with code)
const res = nemathode.evaluatePlease([...]);

kas-elvirov

import Nemathode from 'nemathode';
import { config } from './config';

const nemathode = Nemathode({
    ...config,
});

// method for expression evaluation
const res = nemathode.evaluate([...]);

kas-elvirov

const config = {
		mathConstants: {
			'E': Math.E,
			'LN2': Math.LN2,
			'LN10': Math.LN10,
			'LOG10E': Math.LOG10E,
			'LOG2E': Math.LOG2E,
			'PI': Math.PI,
			'SQRT1_2': Math.SQRT1_2,
			'SQRT2': Math.SQRT2,

kas-elvirov

const customFunction = nemathode.evaluate([1, '+', ['abs', 1, 2, 3]]); //a rguments are not evaluated (future)
const singleFunction = nemathode.evaluate([['abs', 1, 2, 3]]; // single function syntax (it's not convinient, but for now it's only way)
const boolResult = nemathode.evaluate([['areEqual', 1, 2, 3]]); // returns boolean
// etc

kas-elvirov

[0, '+', 1] === (0 + 1)
[0, '+', 1, '*', [2, '/', 3, '-', 4]] === (0 + 1б * (2 / 3 - 4))

kas-elvirov

...
    '+': {
        precedence: 1,
        implementation: (l: number, r: number): number => {
            return l + r;
        },
    }
...

kas-elvirov

const toOutputValue = (val: unknown): number | boolean => {
	if (val instanceof Decimal) {
		return val.toNumber();
	}

	return val;
};

kas-elvirov

const toInputType = (val: unknown): Decimal | unknown => {
	if (typeof val === 'number') {
		const input = new Decimal(val);
        
		return input;
	}

	return val;
};

kas-elvirov

const resOfNestedExp = nemathode.evaluate([1, '+', 'PI', '*', ['abs', 1, 2, 3], '-', [1, '+', [1, '/', 25]]]);