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subscript

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Fast and tiny expression evaluator with minimal syntax.

github.com/dy/subscript

dy/subscript

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import { PREC_LOR, PREC_LAND, PREC_PREFIX, PREC_ASSIGN } from '../src/const.js'; import { unary, binary } from "../src/parse.js" import { operator, compile } from "../src/compile.js" unary('!', PREC_PREFIX), operator('!', (a, b) => !b && (a = compile(a), ctx => !a(ctx))) binary('||', PREC_LOR) operator('||', (a, b) => (a = compile(a), b = compile(b), ctx => a(ctx) || b(ctx))) binary('&&', PREC_LAND) operator('&&', (a, b) => (a = compile(a), b = compile(b), ctx => a(ctx) && b(ctx)))