RunKit + npm: technicalindicators

var Stochastic = require("technicalindicators").Stochastic let input={ high: [ 196.5, 196.5, 196.5, 196.5, 196.5, 196.5, 196.7, 196.7, 196.7, 196.7, 196.7, 196.7, 197.0, 197.0, 196.9, 196.9, 196.9, 196.9, 196.9, 196.9, 196.9, 196.9, 196.9, 196.9, 196.9, 197.5, 197.5, 197.5, 197.5, 197.5, 197.5, 197.5, 197.5, 197.5, 197.5, 197.5, 197.9, 197.8, 197.8, 197.8, 197.8, 197.8, 197.8, 197.8, 197.8, 197.8, 197.8, 197.8, 197.8, 197.8, 197.8, 198.2, 198.2, 198.2, 198.2, 198.2, 198.2, 198.2, 198.2, 198.2, 198.5, 198.5, 198.5, 198.5, 198.5, 198.5, 198.5, 198.5, 198.5, 198.5, 198.5, 198.5, 198.5, 198.5, 198.5, 198.5, 198.5, 199.1, 199.1, 199.1, 199.1, 199.1, 199.1, 199.1, 199.1, 198.0, 198.0, 198.0, 198.0, 198.3, 198.3, 198.3, 198.3, 198.3, 198.3, 198.2, 198.2, 198.2, 198.2, 198.2], low: [ 196.5, 196.5, 196.5, 196.5, 196.5, 196.5, 196.5, 196.7, 196.7, 196.7, 196.7, 196.7, 196.7, 196.9, 196.9, 196.9, 196.9, 196.9, 196.9, 196.9, 196.9, 196.9, 196.9, 196.9, 196.9, 196.9, 197.5, 197.5, 197.5, 197.5, 197.5, 197.5, 197.5, 197.5, 197.5, 197.5, 197.5, 197.8, 197.8, 197.8, 197.8, 197.8, 197.8, 197.8, 197.8, 197.8, 197.8, 197.8, 197.8, 197.8, 197.8, 197.8, 198.2, 198.2, 198.2, 198.2, 198.2, 198.2, 198.2, 198.2, 198.2, 198.5, 198.5, 198.5, 198.5, 198.5, 198.5, 198.5, 198.5, 198.5, 198.5, 198.5, 198.5, 198.5, 198.5, 198.5, 198.5, 198.5, 199.1, 199.1, 199.1, 199.1, 199.1, 199.1, 198.0, 198.0, 198.0, 198.0, 198.0, 198.0, 198.3, 198.3, 198.3, 198.3, 198.2, 198.2, 198.2, 198.2, 198.2, 198.2], close: [ 196.5, 196.5, 196.5, 196.5, 196.5, 196.5, 196.7, 196.7, 196.7, 196.7, 196.7, 196.7, 197.0, 196.9, 196.9, 196.9, 196.9, 196.9, 196.9, 196.9, 196.9, 196.9, 196.9, 196.9, 196.9, 197.5, 197.5, 197.5, 197.5, 197.5, 197.5, 197.5, 197.5, 197.5, 197.5, 197.5, 197.8, 197.8, 197.8, 197.8, 197.8, 197.8, 197.8, 197.8, 197.8, 197.8, 197.8, 197.8, 197.8, 197.8, 197.8, 198.2, 198.2, 198.2, 198.2, 198.2, 198.2, 198.2, 198.2, 198.2, 198.5, 198.5, 198.5, 198.5, 198.5, 198.5, 198.5, 198.5, 198.5, 198.5, 198.5, 198.5, 198.5, 198.5, 198.5, 198.5, 198.5, 199.1, 199.1, 199.1, 199.1, 199.1, 199.1, 199.1, 198.0, 198.0, 198.0, 198.0, 198.0, 198.3, 198.3, 198.3, 198.3, 198.3, 198.2, 198.2, 198.2, 198.2, 198.2, 198.2], period:14, signalPeriod:3 } let st = Stochastic.calculate(input); console.log('-----',st)