60 lines
1.8 KiB
JavaScript
60 lines
1.8 KiB
JavaScript
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import { factory } from '../../utils/factory.js';
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import { deepMap } from '../../utils/collection.js';
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import { unaryPlusNumber } from '../../plain/number/index.js';
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var name = 'unaryPlus';
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var dependencies = ['typed', 'config', 'BigNumber'];
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export var createUnaryPlus = /* #__PURE__ */factory(name, dependencies, _ref => {
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var {
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typed,
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config,
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BigNumber
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} = _ref;
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/**
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* Unary plus operation.
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* Boolean values and strings will be converted to a number, numeric values will be returned as is.
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*
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* For matrices, the function is evaluated element wise.
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*
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* Syntax:
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*
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* math.unaryPlus(x)
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*
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* Examples:
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*
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* math.unaryPlus(3.5) // returns 3.5
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* math.unaryPlus(1) // returns 1
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*
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* See also:
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*
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* unaryMinus, add, subtract
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*
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* @param {number | BigNumber | Fraction | string | Complex | Unit | Array | Matrix} x
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* Input value
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* @return {number | BigNumber | Fraction | Complex | Unit | Array | Matrix}
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* Returns the input value when numeric, converts to a number when input is non-numeric.
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*/
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return typed(name, {
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number: unaryPlusNumber,
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Complex: function Complex(x) {
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return x; // complex numbers are immutable
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},
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BigNumber: function BigNumber(x) {
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return x; // bignumbers are immutable
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},
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Fraction: function Fraction(x) {
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return x; // fractions are immutable
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},
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Unit: function Unit(x) {
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return x.clone();
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},
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'Array | Matrix': function ArrayMatrix(x) {
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// deep map collection, skip zeros since unaryPlus(0) = 0
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return deepMap(x, this, true);
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},
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'boolean | string': function booleanString(x) {
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// convert to a number or bignumber
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return config.number === 'BigNumber' ? new BigNumber(+x) : +x;
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}
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});
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});
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