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sfccxt

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A JavaScript / Python / PHP cryptocurrency trading library with support for 130+ exchanges

ccxt.com

SzymonFialkowski/bit

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"use strict"; /* ------------------------------------------------------------------------ */ const isNumber = Number.isFinite , isInteger = Number.isInteger , isArray = Array.isArray , hasProps = o => ((o !== undefined) && (o !== null)) , isString = s => (typeof s === 'string') , isObject = o => ((o !== null) && (typeof o === 'object')) , isRegExp = o => (o instanceof RegExp) , isDictionary = o => (isObject (o) && (Object.getPrototypeOf (o) === Object.prototype) && !isArray (o) && !isRegExp (o)) , isStringCoercible = x => ((hasProps (x) && x.toString) || isNumber (x)) /* ............................................. */ const prop = (o, k) => (isObject (o) && o[k] !== '' && o[k] !== null ? o[k] : undefined) , prop2 = (o, k1, k2) => ( !isObject (o) ? undefined : ( o[k1] !== undefined && o[k1] !== '' && o[k1] !== null ? o[k1] : ( o[k2] !== '' && o[k2] !== null ? o[k2] : undefined ) ) ) , getValueFromKeysInArray = (object, array) => object[array.find (k => prop (object,k) !== undefined)] /* ............................................. */ const asFloat = x => ((isNumber (x) || (isString (x) && x.length !== 0)) ? parseFloat (x) : NaN) , asInteger = x => ((isNumber (x) || (isString (x) && x.length !== 0)) ? Math.trunc (Number(x)) : NaN) /* ............................................. */ module.exports = { isNumber , isInteger , 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) , safeIntegerProduct: (o, k, $factor, $default, n = asInteger (prop (o, k))) => (isNumber (n) ? parseInt (n * $factor) : $default) , safeTimestamp: (o, k, $default, n = asFloat (prop (o, k))) => (isNumber (n) ? parseInt (n * 1000) : $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) , safeStringLower: (o, k, $default, x = prop (o, k)) => (isStringCoercible (x) ? String (x).toLowerCase () : $default ? $default.toLowerCase () : $default) , safeStringUpper: (o, k, $default, x = prop (o, k)) => (isStringCoercible (x) ? String (x).toUpperCase () : $default ? $default.toUpperCase () : $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) , safeIntegerProduct2: (o, k1, k2, $factor, $default, n = asInteger (prop2 (o, k1, k2))) => (isNumber (n) ? parseInt (n * $factor) : $default) , safeTimestamp2: (o, k1, k2, $default, n = asFloat (prop2 (o, k1, k2))) => (isNumber (n) ? parseInt (n * 1000) : $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) , safeStringLower2: (o, k1, k2, $default, x = prop2 (o, k1, k2)) => (isStringCoercible (x) ? String (x).toLowerCase () : $default ? $default.toLowerCase () : $default) , safeStringUpper2: (o, k1, k2, $default, x = prop2 (o, k1, k2)) => (isStringCoercible (x) ? String (x).toUpperCase () : $default ? $default.toUpperCase () : $default) // safeMethodN , safeFloatN: (o, k, $default, n = asFloat (getValueFromKeysInArray (o, k))) => (isNumber (n) ? n : $default) , safeIntegerN: (o, k, $default, n = asInteger (getValueFromKeysInArray (o, k))) => (isNumber (n) ? n : $default) , safeIntegerProductN: (o, k, $factor, $default, n = asInteger (getValueFromKeysInArray (o, k))) => (isNumber (n) ? parseInt (n * $factor) : $default) , safeTimestampN: (o, k, $default, n = asFloat (getValueFromKeysInArray (o, k))) => (isNumber (n) ? parseInt (n * 1000) : $default) , safeValueN: (o, k, $default, x = getValueFromKeysInArray (o, k)) => (hasProps (x) ? x : $default) , safeStringN: (o, k, $default, x = getValueFromKeysInArray (o, k)) => (isStringCoercible (x) ? String (x) : $default) , safeStringLowerN: (o, k, $default, x = getValueFromKeysInArray (o, k)) => (isStringCoercible (x) ? String (x).toLowerCase () : $default ? $default.toLowerCase () : $default) , safeStringUpperN: (o, k, $default, x = getValueFromKeysInArray (o, k)) => (isStringCoercible (x) ? String (x).toUpperCase () : $default ? $default.toUpperCase () : $default) } /* ------------------------------------------------------------------------ */