billboard.js
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Re-usable easy interface JavaScript chart library, based on D3 v4+
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JavaScript
/*!
* Copyright (c) 2017 ~ present NAVER Corp.
* billboard.js project is licensed under the MIT license
*
* billboard.js, JavaScript chart library
* https://naver.github.io/billboard.js/
*
* @version 4.1.1
*/
//#region src/module/util/type-checks.ts
/**
* Copyright (c) 2017 ~ present NAVER Corp.
* billboard.js project is licensed under the MIT license
* @ignore
*/
const isValue = (v) => v || v === 0;
const isFunction = (v) => typeof v === "function";
const isString = (v) => typeof v === "string";
const isNumber = (v) => typeof v === "number";
const isUndefined = (v) => typeof v === "undefined";
const isDefined = (v) => typeof v !== "undefined";
const isBoolean = (v) => typeof v === "boolean";
const ceil10 = (v) => Math.ceil(v / 10) * 10;
const asHalfPixel = (n) => Math.ceil(n) + .5;
const diffDomain = (d) => d[1] - d[0];
const isObjectType = (v) => typeof v === "object";
const isEmptyObject = (obj) => {
for (const x in obj) if (Object.prototype.hasOwnProperty.call(obj, x)) return false;
return true;
};
const isEmpty = (o) => isUndefined(o) || o === null || isString(o) && o.length === 0 || isObjectType(o) && !(o instanceof Date) && isEmptyObject(o) || isNumber(o) && isNaN(o);
const notEmpty = (o) => !isEmpty(o);
/**
* Check if is array
* @param {Array} arr Data to be checked
* @returns {boolean}
* @private
*/
const isArray = (arr) => Array.isArray(arr);
/**
* Check if is object
* @param {object} obj Data to be checked
* @returns {boolean}
* @private
*/
const isObject = (obj) => obj && !obj?.nodeType && isObjectType(obj) && !isArray(obj);
//#endregion
export { asHalfPixel, ceil10, diffDomain, isArray, isBoolean, isDefined, isEmpty, isEmptyObject, isFunction, isNumber, isObject, isObjectType, isString, isUndefined, isValue, notEmpty };