ccxt/js/src/base/functions/type.js

A cryptocurrency trading API with more than 100 exchanges in JavaScript / TypeScript / Python / C# / PHP / Go

// ----------------------------------------------------------------------------

// PLEASE DO NOT EDIT THIS FILE, IT IS GENERATED AND WILL BE OVERWRITTEN:
// https://github.com/ccxt/ccxt/blob/master/CONTRIBUTING.md#how-to-contribute-code
// EDIT THE CORRESPONDENT .ts FILE INSTEAD

/*  ------------------------------------------------------------------------ */
const isNumber = Number.isFinite;
const isInteger = Number.isInteger;
const isArray = Array.isArray;
const hasProps = (o) => ((o !== undefined) && (o !== null));
const isString = (s) => (typeof s === 'string');
const isObject = (o) => ((o !== null) && (typeof o === 'object'));
const isRegExp = (o) => (o instanceof RegExp);
const isDictionary = (o) => (isObject(o) && (Object.getPrototypeOf(o) === Object.prototype) && !isArray(o) && !isRegExp(o));
const isStringCoercible = (x) => ((hasProps(x) && x.toString) || isNumber(x));
/*  .............................................   */
const prop = (o, k) => {
    if (k === undefined || k === null) {
        return undefined;
    }
    return (isObject(o) && o[k] !== '' && o[k] !== null ? o[k] : undefined);
};
const prop2 = (o, k1, k2) => {
    if (!isObject(o)) {
        return undefined;
    }
    if (k1 !== undefined && k1 !== null) {
        if (o[k1] !== undefined && o[k1] !== '' && o[k1] !== null) {
            return o[k1];
        }
    }
    if (k2 !== undefined && k2 !== null) {
        if (o[k2] !== '' && o[k2] !== null) {
            return o[k2];
        }
    }
    return undefined;
};
const getValueFromKeysInArray = (object, array) => isObject(object) ? object[array.find((k) => prop(object, k) !== undefined)] : undefined;
/*  .............................................   */
const asFloat = (x) => ((isNumber(x) || (isString(x) && x.length !== 0)) ? parseFloat(x) : NaN);
const asInteger = (x) => ((isNumber(x) || (isString(x) && x.length !== 0)) ? Math.trunc(Number(x)) : NaN);
/*  .............................................   */
function safeFloat(o, k, $default) {
    const n = asFloat(prop(o, k));
    return isNumber(n) ? n : $default;
}
function safeInteger(o, k, $default) {
    const n = asInteger(prop(o, k));
    return isNumber(n) ? n : $default;
}
function safeIntegerProduct(o, k, $factor, $default) {
    const n = asFloat(prop(o, k));
    return isNumber(n) ? parseInt(n * $factor) : $default;
}
function safeTimestamp(o, k, $default) {
    const n = asFloat(prop(o, k));
    return isNumber(n) ? parseInt(n * 1000) : $default;
}
function safeValue(o, k, $default) {
    const x = prop(o, k);
    return hasProps(x) ? x : $default;
}
function safeString(o, k, $default) {
    const x = prop(o, k);
    if (typeof x === 'string')
        return x;
    if (Number.isFinite(x))
        return String(x);
    return $default;
}
function safeStringLower(o, k, $default) {
    const x = prop(o, k);
    if (typeof x === 'string')
        return x.toLowerCase();
    if (Number.isFinite(x))
        return String(x).toLowerCase();
    return $default;
}
function safeStringUpper(o, k, $default) {
    const x = prop(o, k);
    if (typeof x === 'string')
        return x.toUpperCase();
    if (Number.isFinite(x))
        return String(x).toUpperCase();
    return $default;
}
/*  .............................................   */
function safeFloat2(o, k1, k2, $default) {
    const n = asFloat(prop2(o, k1, k2));
    return isNumber(n) ? n : $default;
}
function safeInteger2(o, k1, k2, $default) {
    const n = asInteger(prop2(o, k1, k2));
    return isNumber(n) ? n : $default;
}
function safeIntegerProduct2(o, k1, k2, $factor, $default) {
    const n = asFloat(prop2(o, k1, k2));
    return isNumber(n) ? parseInt(n * $factor) : $default;
}
function safeTimestamp2(o, k1, k2, $default) {
    const n = asFloat(prop2(o, k1, k2));
    return isNumber(n) ? parseInt(n * 1000) : $default;
}
function safeValue2(o, k1, k2, $default) {
    const x = prop2(o, k1, k2);
    return hasProps(x) ? x : $default;
}
function safeString2(o, k1, k2, $default) {
    const x = prop2(o, k1, k2);
    if (typeof x === 'string')
        return x;
    if (Number.isFinite(x))
        return String(x);
    return $default;
}
function safeStringLower2(o, k1, k2, $default) {
    const x = prop2(o, k1, k2);
    if (typeof x === 'string')
        return x.toLowerCase();
    if (Number.isFinite(x))
        return String(x).toLowerCase();
    return $default;
}
function safeStringUpper2(o, k1, k2, $default) {
    const x = prop2(o, k1, k2);
    if (typeof x === 'string')
        return x.toUpperCase();
    if (Number.isFinite(x))
        return String(x).toUpperCase();
    return $default;
}
function safeFloatN(o, k, $default) {
    const n = asFloat(getValueFromKeysInArray(o, k));
    return isNumber(n) ? n : $default;
}
function safeIntegerN(o, k, $default) {
    if (o === undefined) {
        return $default;
    }
    const n = asInteger(getValueFromKeysInArray(o, k));
    return isNumber(n) ? n : $default;
}
function safeIntegerProductN(o, k, $factor, $default) {
    const n = asFloat(getValueFromKeysInArray(o, k));
    return isNumber(n) ? parseInt(n * $factor) : $default;
}
function safeTimestampN(o, k, $default) {
    const n = asFloat(getValueFromKeysInArray(o, k));
    return isNumber(n) ? parseInt(n * 1000) : $default;
}
function safeValueN(o, k, $default) {
    if (o === undefined) {
        return $default;
    }
    const x = getValueFromKeysInArray(o, k);
    return hasProps(x) ? x : $default;
}
function safeStringN(o, k, $default) {
    if (o === undefined)
        return $default;
    const x = getValueFromKeysInArray(o, k);
    if (typeof x === 'string')
        return x;
    if (Number.isFinite(x))
        return String(x);
    return $default;
}
function safeStringLowerN(o, k, $default) {
    if (o === undefined)
        return $default;
    const x = getValueFromKeysInArray(o, k);
    if (typeof x === 'string')
        return x.toLowerCase();
    if (Number.isFinite(x))
        return String(x).toLowerCase();
    return $default;
}
function safeStringUpperN(o, k, $default) {
    if (o === undefined)
        return $default;
    const x = getValueFromKeysInArray(o, k);
    if (typeof x === 'string')
        return x.toUpperCase();
    if (Number.isFinite(x))
        return String(x).toUpperCase();
    return $default;
}
export { isNumber, isInteger, isArray, isObject, isString, isStringCoercible, isDictionary as isDict, hasProps, prop, asFloat, asInteger, safeFloat, safeInteger, safeIntegerProduct, safeTimestamp, safeValue, safeString, safeStringLower, safeStringUpper
// 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, safeInteger2, safeIntegerProduct2, safeTimestamp2, safeValue2, safeString2, safeStringLower2, safeStringUpper2
// safeMethodN
, safeFloatN, safeIntegerN, safeIntegerProductN, safeTimestampN, safeValueN, safeStringN, safeStringLowerN, safeStringUpperN, };
/*  ------------------------------------------------------------------------ */