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preidman-ccxt

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A JavaScript / Python / PHP cryptocurrency trading library with support for 100+ exchanges

ccxt.trade

preidman/ccxt

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"use strict"; /* ------------------------------------------------------------------------ */ const isNumber = Number.isFinite , isArray = Array.isArray , isString = s => (typeof s === 'string') , isObject = o => (o !== null) && (typeof o === 'object') , isDictionary = o => (isObject (o) && !isArray (o)) , isStringCoercible = x => (hasProps (x) && x.toString) || isNumber (x) /* ............................................. */ const hasProps = o => (o !== undefined) && (o !== null) , prop = (o, k) => (isObject (o) ? o[k] : undefined) , prop2 = (o, k1, k2) => (!isObject (o) ? undefined : ((k1 in o) ? o[k1] : o[k2])) /* ............................................. */ const asFloat = x => ((isNumber (x) || isString (x)) ? parseFloat (x) : NaN) , asInteger = x => ((isNumber (x) || isString (x)) ? parseInt (x, 10) : NaN) /* ............................................. */ module.exports = { isNumber , isArray , isObject , isString , isStringCoercible , isDictionary , hasProps , prop , asFloat , asInteger , safeFloat: (o, k, $default, n = asFloat (prop (o, k))) => isNumber (n) ? n : $default , safeInteger: (o, k, $default, n = asInteger (prop (o, k))) => isNumber (n) ? n : $default , safeValue: (o, k, $default, x = prop (o, k) ) => hasProps (x) ? x : $default , safeString: (o, k, $default, x = prop (o, k) ) => isStringCoercible (x) ? String (x) : $default // not using safeFloats with an array argument as we're trying to save some cycles here // we're not using safeFloat3 either because those cases are too rare to deserve their own optimization , safeFloat2: (o, k1, k2, $default, n = asFloat (prop2 (o, k1, k2))) => isNumber (n) ? n : $default , safeInteger2: (o, k1, k2, $default, n = asInteger (prop2 (o, k1, k2))) => isNumber (n) ? n : $default , safeValue2: (o, k1, k2, $default, x = prop2 (o, k1, k2) ) => hasProps (x) ? x : $default , safeString2: (o, k1, k2, $default, x = prop2 (o, k1, k2) ) => isStringCoercible (x) ? String (x) : $default } /* ------------------------------------------------------------------------ */