simple-squiggle/node_modules/mathjs/lib/esm/expression/function/parser.js

58 lines
1.7 KiB
JavaScript

import { factory } from '../../utils/factory.js';
var name = 'parser';
var dependencies = ['typed', 'Parser'];
export var createParser = /* #__PURE__ */factory(name, dependencies, _ref => {
var {
typed,
Parser
} = _ref;
/**
* Create a parser. The function creates a new `math.Parser` object.
*
* Syntax:
*
* math.parser()
*
* Examples:
*
* const parser = new math.parser()
*
* // evaluate expressions
* const a = parser.evaluate('sqrt(3^2 + 4^2)') // 5
* const b = parser.evaluate('sqrt(-4)') // 2i
* const c = parser.evaluate('2 inch in cm') // 5.08 cm
* const d = parser.evaluate('cos(45 deg)') // 0.7071067811865476
*
* // define variables and functions
* parser.evaluate('x = 7 / 2') // 3.5
* parser.evaluate('x + 3') // 6.5
* parser.evaluate('f(x, y) = x^y') // f(x, y)
* parser.evaluate('f(2, 3)') // 8
*
* // get and set variables and functions
* const x = parser.get('x') // 7
* const f = parser.get('f') // function
* const g = f(3, 2) // 9
* parser.set('h', 500)
* const i = parser.evaluate('h / 2') // 250
* parser.set('hello', function (name) {
* return 'hello, ' + name + '!'
* })
* parser.evaluate('hello("user")') // "hello, user!"
*
* // clear defined functions and variables
* parser.clear()
*
* See also:
*
* evaluate, compile, parse
*
* @return {Parser} Parser
*/
return typed(name, {
'': function _() {
return new Parser();
}
});
});