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Pass in the target object followed by 1 or more\n * objects as arguments and they will be merged sequentially into the target. Note that this will\n * shallow merge; it will not create new cloned values for target members.\n *\n * @public\n * @param target - Target object to merge following object arguments into.\n * @param args - One or more objects that will be mixed into the target in the order they are provided.\n * @returns Resulting merged target.\n */\n// eslint-disable-next-line @typescript-eslint/no-explicit-any\nexport function assign(target: any, ...args: any[]): any {\n return filteredAssign.apply(this, [null, target].concat(args));\n}\n\n/**\n * Makes a resulting merge of a bunch of objects, but allows a filter function to be passed in to filter\n * the resulting merges. This allows for scenarios where you want to merge \"everything except that one thing\"\n * or \"properties that start with data-\". Note that this will shallow merge; it will not create new cloned\n * values for target members.\n *\n * @public\n * @param isAllowed - Callback to determine if the given propName is allowed in the result.\n * @param target - Target object to merge following object arguments into.\n * @param args - One or more objects that will be mixed into the target in the order they are provided.\n * @returns Resulting merged target.\n */\n// eslint-disable-next-line @typescript-eslint/no-explicit-any\nexport function filteredAssign(isAllowed: (propName: string) => boolean, target: any, ...args: any[]): any {\n target = target || {};\n\n for (let sourceObject of args) {\n if (sourceObject) {\n for (let propName in sourceObject) {\n if (sourceObject.hasOwnProperty(propName) && (!isAllowed || isAllowed(propName))) {\n target[propName] = sourceObject[propName];\n }\n }\n }\n }\n\n return target;\n}\n\n/**\n * Takes an enum and iterates over each value of the enum (as a string), running the callback on each,\n * returning a mapped array.\n * @param theEnum - Enum to iterate over\n * @param callback - The first parameter the name of the entry, and the second parameter is the value\n * of that entry, which is the value you'd normally use when using the enum (usually a number).\n */\nexport function mapEnumByName<T>(\n // eslint-disable-next-line @typescript-eslint/no-explicit-any\n theEnum: any,\n callback: (name?: string, value?: string | number) => T | undefined,\n): (T | undefined)[] | undefined {\n // map<any> to satisfy compiler since it doesn't realize we strip out undefineds in the .filter() call\n return Object.keys(theEnum)\n .map<T | undefined>((p: string | number) => {\n // map on each property name as a string\n if (String(Number(p)) !== p) {\n // if the property is not just a number (because enums in TypeScript will map both ways)\n return callback(p as string, theEnum[p]);\n }\n return undefined;\n })\n .filter((v: T | undefined) => !!v); // only return elements with values\n}\n\n/**\n * Get all values in an object dictionary\n *\n * @param obj - The dictionary to get values for\n */\n// eslint-disable-next-line @typescript-eslint/no-explicit-any\nexport function values<T>(obj: any): T[] {\n return Object.keys(obj).reduce((arr: T[], key: string): T[] => {\n arr.push(obj[key]);\n return arr;\n }, []);\n}\n\n/**\n * Tiny helper to do the minimal amount of work in duplicating an object but omitting some\n * props. This ends up faster than using object ...rest or reduce to filter.\n *\n * This behaves very much like filteredAssign, but does not merge many objects together,\n * uses an exclusion object map, and avoids spreads all for optimal performance.\n *\n * See perf test for background:\n * https://jsperf.com/omit-vs-rest-vs-reduce/1\n *\n * @param obj - The object to clone\n * @param exclusions - The array of keys to exclude\n */\n// eslint-disable-next-line @typescript-eslint/no-explicit-any\nexport function omit<TObj extends Record<string, any>>(obj: TObj, exclusions: (keyof TObj)[]): TObj {\n // eslint-disable-next-line @typescript-eslint/no-explicit-any\n const result: Record<string, any> = {};\n\n for (const key in obj) {\n if (exclusions.indexOf(key) === -1 && obj.hasOwnProperty(key)) {\n result[key] = obj[key];\n }\n }\n\n return result as TObj;\n}\n"]} |