1e98184f-0522-4515-a343-e44e919e1313

Committed 08 Dec 2023 07:22AM UTC coverage: 55.49% (-10.3%) from 65.775%

Build # 1e98184f-0522-4515-a343-e44e919e1313

Build Type

push

circleci

Committed by

Haixing-Hu

Commit Message

style: fix coding style

Run Details

274 of 513 branches covered (0.0%)

Branch coverage included in aggregate %.

1 of 1 new or added line in 1 file covered. (100.0%)

47 existing lines in 7 files now uncovered.

287 of 498 relevant lines covered (57.63%)

12.93 hits per line

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64.44

/src/empty-fields-to-null.js

////////////////////////////////////////////////////////////////////////////////
//
//    Copyright (c) 2022 - 2023.
//    Haixing Hu, Qubit Co. Ltd.
//
//    All rights reserved.
//
////////////////////////////////////////////////////////////////////////////////
import typeInfo from '@haixing_hu/typeinfo';

/**
 * Create a new object based on an existing object, but modify all its attribute
 * values that are empty strings to `null`.
 *
 * @param {any} obj
 *    The object or value to be converted.
 * @return
 *    - If `obj` is `undefined`, returns `undefined`;
 *    - If `obj` is `null`, returns `null`;
 *    - If `obj` is a string, `null` is returned for an empty string, and `obj` is
 *      returned for other strings;
 *    - If `obj` is a `boolean`, `number`, `bigint` `symbol` or `function` value,
 *      returns `obj`;
 *    - If `obj` is an `Array`, `Set`, or `Map`, a shallow copy of `obj` is returned.
 *      Otherwise, return a copy of `obj`, but modify all its attribute values
 *      that are empty strings to `null`.
 * @author Haixing Hu
 */
function emptyFieldsToNull(obj) {
  const info = typeInfo(obj);
  switch (info.type) {
    case 'string':
      return (obj === '' ? null : obj);               // recursion end point
    case 'undefined':   // fall down
    case 'null':        // fall down
    case 'boolean':     // fall down
    case 'number':      // fall down
    case 'bigint':      // fall down
    case 'symbol':      // fall down
    case 'function':
      return obj;
    case 'object':      // fall down
    default:
      break;            // fall down
  }
  switch (info.subtype) {
    case 'Array':
      return obj.map((e) => emptyFieldsToNull(e));  // Process each element recursively
    case 'Map':
    case 'WeakMap': {
      const result = new Map();
      for (const key of obj.keys()) {
        const value = obj.get(key);
        const newValue = emptyFieldsToNull(value);  // Process each element recursively
        result.set(key, newValue);
      }
      return result;
    }
    case 'Set':
    case 'WeakSet': {
      const result = new Set();
      for (const value of obj.values()) {
        const newValue = emptyFieldsToNull(value);  // Process each element recursively
        result.add(newValue);
      }
      return result;
    }
    case 'Object':
    default: {
      if (info.isBuiltIn) {
        return obj;                                 // recursion end point
      }
      // Create objects of the same type. Note that Object.create() cannot be used.
      const result = new obj.constructor();
      Object.keys(obj).forEach((key) => {
        result[key] = emptyFieldsToNull(obj[key]);  // Process each attribute recursively
      });
      return result;
    }
  }
}

export default emptyFieldsToNull;

1	////////////////////////////////////////////////////////////////////////////////
2	//
3	// Copyright (c) 2022 - 2023.
4	// Haixing Hu, Qubit Co. Ltd.
5	//
6	// All rights reserved.
7	//
8	////////////////////////////////////////////////////////////////////////////////
9	import typeInfo from '@haixing_hu/typeinfo';
10
11	/**
12	* Create a new object based on an existing object, but modify all its attribute
13	* values that are empty strings to `null`.
14	*
15	* @param {any} obj
16	* The object or value to be converted.
17	* @return
18	* - If `obj` is `undefined`, returns `undefined`;
19	* - If `obj` is `null`, returns `null`;
20	* - If `obj` is a string, `null` is returned for an empty string, and `obj` is
21	* returned for other strings;
22	* - If `obj` is a `boolean`, `number`, `bigint` `symbol` or `function` value,
23	* returns `obj`;
24	* - If `obj` is an `Array`, `Set`, or `Map`, a shallow copy of `obj` is returned.
25	* Otherwise, return a copy of `obj`, but modify all its attribute values
26	* that are empty strings to `null`.
27	* @author Haixing Hu
28	*/
29	function emptyFieldsToNull(obj) {
30	const info = typeInfo(obj);	79✔
31	switch (info.type) {	79✔
32	case 'string':
33	return (obj === '' ? null : obj); // recursion end point	26✔
34	case 'undefined': // fall down
35	case 'null': // fall down
36	case 'boolean': // fall down
37	case 'number': // fall down
38	case 'bigint': // fall down
39	case 'symbol': // fall down
40	case 'function':
41	return obj;	26✔
42	case 'object': // fall down
43	default:
44	break; // fall down	27✔
45	}
46	switch (info.subtype) {	27!
47	case 'Array':
48	return obj.map((e) => emptyFieldsToNull(e)); // Process each element recursively	17✔
49	case 'Map':
50	case 'WeakMap': {
UNCOV 51	const result = new Map();	×
UNCOV 52	for (const key of obj.keys()) {	×
UNCOV 53	const value = obj.get(key);	×
UNCOV 54	const newValue = emptyFieldsToNull(value); // Process each element recursively	×
UNCOV 55	result.set(key, newValue);	×
56	}
UNCOV 57	return result;	×
58	}
59	case 'Set':
60	case 'WeakSet': {
UNCOV 61	const result = new Set();	×
UNCOV 62	for (const value of obj.values()) {	×
UNCOV 63	const newValue = emptyFieldsToNull(value); // Process each element recursively	×
UNCOV 64	result.add(newValue);	×
65	}
66	return result;	×
67	}
68	case 'Object':
69	default: {
70	if (info.isBuiltIn) {	20✔
71	return obj; // recursion end point	2✔
72	}
73	// Create objects of the same type. Note that Object.create() cannot be used.
74	const result = new obj.constructor();	18✔
75	Object.keys(obj).forEach((key) => {	18✔
76	result[key] = emptyFieldsToNull(obj[key]); // Process each attribute recursively	42✔
77	});
78	return result;	18✔
79	}
80	}
81	}
82
83	export default emptyFieldsToNull;

Haixing-Hu / js-common-util / 1e98184f-0522-4515-a343-e44e919e1313

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