devextreme
Version:
HTML5 JavaScript Component Suite for Responsive Web Development
65 lines (64 loc) • 2.26 kB
JavaScript
/**
* DevExtreme (cjs/__internal/core/utils/m_extend.js)
* Version: 24.2.7
* Build date: Mon Apr 28 2025
*
* Copyright (c) 2012 - 2025 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.extendFromObject = exports.extend = void 0;
var _type = require("../../../core/utils/type");
const extendFromObject = function(target, source, overrideExistingValues) {
target = target || {};
for (const prop in source) {
if (Object.prototype.hasOwnProperty.call(source, prop)) {
const value = source[prop];
if (!(prop in target) || overrideExistingValues) {
target[prop] = value
}
}
}
return target
};
exports.extendFromObject = extendFromObject;
const extend = function(target) {
target = target || {};
let i = 1;
let deep = false;
if ("boolean" === typeof target) {
deep = target;
target = arguments[1] || {};
i++
}
for (; i < arguments.length; i++) {
const source = arguments[i];
if (null == source) {
continue
}
for (const key in source) {
const targetValue = target[key];
const sourceValue = source[key];
let sourceValueIsArray = false;
let clone;
if ("__proto__" === key || "constructor" === key || target === sourceValue) {
continue
}
if (deep && sourceValue && ((0, _type.isPlainObject)(sourceValue) || (sourceValueIsArray = Array.isArray(sourceValue)))) {
if (sourceValueIsArray) {
clone = targetValue && Array.isArray(targetValue) ? targetValue : []
} else {
clone = targetValue && (0, _type.isPlainObject)(targetValue) ? targetValue : {}
}
target[key] = extend(deep, clone, sourceValue)
} else if (void 0 !== sourceValue) {
target[key] = sourceValue
}
}
}
return target
};
exports.extend = extend;