Home Web Front-end JS Tutorial How does the json object implement the case conversion function of the array key value?

How does the json object implement the case conversion function of the array key value?

May 02, 2018 pm 04:56 PM
javascript json array

This time I will bring you jsonObjectHow to implement arraykey value case conversion function, json object implements array key value case conversion functionNotesWhat are they? The following is a practical case. Let’s take a look.

Preface

I was working on a project recently and found that all the data key values ​​returned by the backend are in uppercase letters, which is sometimes used by the frontend. It's very inconvenient, so I wrote a small deep conversion tool to share with everyone, so that I don't have to reinvent the wheel. If you don't like it, don't criticize it. I won't say much below, let's take a look at the detailed introduction.

start

npm i deep-lu-trans --save
Copy after login

json example

import t from 'deep-lu-trans';
const obj = {
 AS_DD_S: 123213,
 AND_SAJ_JDK_JSAKD_: {
 DJK_ASJ: {
  SA_DSA_DSA: 123123,
  ASDA_SDH_KAS: {
  ASD_SAD: [{
   ASD_SAD_SA: 123123,
   III_ASDA: [1, 23, {
   ASD_SAD: 123
   }]
  }]
  }
 }
 },
 KIO: [{
 OP: 1,
 OOP: 2
 }, {
 OL: 1,
 OP: 2
 }]
};
t.objKeysToLower(obj).then((res) => {
 console.log(JSON.stringify(res));
});
t.objKeysToLower(obj).then((res) => {
 console.log(JSON.stringify(res));
 /*
 {"as_dd_s":123213,"and_saj_jdk_jsakd_":{"djk_asj":{"sa_dsa_dsa":123123,"asda_sdh_kas":{"asd_sad":[{"asd_sad_sa":123123,"iii_asda":[1,23,{"asd_sad":123}]}]}}},"kio":[{"op":1,"oop":2},{"ol":1,"op":2}]}
 */
 t.objKeysToUpper(res).then((_s) => {
 console.log(JSON.stringify(_s));
 /*
 {"AS_DD_S":123213,"AND_SAJ_JDK_JSAKD_":{"DJK_ASJ":{"SA_DSA_DSA":123123,"ASDA_SDH_KAS":{"ASD_SAD":[{"ASD_SAD_SA":123123,"III_ASDA":[1,23,{"ASD_SAD":123}]}]}}},"KIO":[{"OP":1,"OOP":2},{"OL":1,"OP":2}]}
  */
 });
});
Copy after login

array example

import t from 'deep-lu-trans';
const arr = [{
 A_B: 1,
 B_C: 2
}, 3, 4, 'abc', [{
 A_B: 1,
 B_C: {
 C_D: [0, {
  CK: 1,
  KL: 2
 }]
 }
}]]
t.arrKeysToLower(arr).then((res) => {
 console.log(JSON.stringify(res));
 /*
 [{"a_b":1,"b_c":2},3,4,"abc",[{"a_b":1,"b_c":{"c_d":[0,{"ck":1,"kl":2}]}}]]
 */
 t.arrKeysToUpper(res).then((_s) => {
 console.log(JSON.stringify(_s));
 [{"A_B":1,"B_C":2},3,4,"abc",[{"A_B":1,"B_C":{"C_D":[0,{"CK":1,"KL":2}]}}]]
 });
})
Copy after login

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!

Recommended reading:

angular4 Multiple components communicate with each other

Detailed explanation of the steps for Vue to reference external style files

The above is the detailed content of How does the json object implement the case conversion function of the array key value?. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Performance optimization tips for converting PHP arrays to JSON Performance optimization tips for converting PHP arrays to JSON May 04, 2024 pm 06:15 PM

Performance optimization methods for converting PHP arrays to JSON include: using JSON extensions and the json_encode() function; adding the JSON_UNESCAPED_UNICODE option to avoid character escaping; using buffers to improve loop encoding performance; caching JSON encoding results; and considering using a third-party JSON encoding library.

The Art of PHP Array Deep Copy: Using Different Methods to Achieve a Perfect Copy The Art of PHP Array Deep Copy: Using Different Methods to Achieve a Perfect Copy May 01, 2024 pm 12:30 PM

Methods for deep copying arrays in PHP include: JSON encoding and decoding using json_decode and json_encode. Use array_map and clone to make deep copies of keys and values. Use serialize and unserialize for serialization and deserialization.

PHP array key value flipping: Comparative performance analysis of different methods PHP array key value flipping: Comparative performance analysis of different methods May 03, 2024 pm 09:03 PM

The performance comparison of PHP array key value flipping methods shows that the array_flip() function performs better than the for loop in large arrays (more than 1 million elements) and takes less time. The for loop method of manually flipping key values ​​takes a relatively long time.

How do annotations in the Jackson library control JSON serialization and deserialization? How do annotations in the Jackson library control JSON serialization and deserialization? May 06, 2024 pm 10:09 PM

Annotations in the Jackson library control JSON serialization and deserialization: Serialization: @JsonIgnore: Ignore the property @JsonProperty: Specify the name @JsonGetter: Use the get method @JsonSetter: Use the set method Deserialization: @JsonIgnoreProperties: Ignore the property @ JsonProperty: Specify name @JsonCreator: Use constructor @JsonDeserialize: Custom logic

PHP array multi-dimensional sorting practice: from simple to complex scenarios PHP array multi-dimensional sorting practice: from simple to complex scenarios Apr 29, 2024 pm 09:12 PM

Multidimensional array sorting can be divided into single column sorting and nested sorting. Single column sorting can use the array_multisort() function to sort by columns; nested sorting requires a recursive function to traverse the array and sort it. Practical cases include sorting by product name and compound sorting by sales volume and price.

Best Practices for Deep Copying PHP Arrays: Discover Efficient Methods Best Practices for Deep Copying PHP Arrays: Discover Efficient Methods Apr 30, 2024 pm 03:42 PM

The best practice for performing an array deep copy in PHP is to use json_decode(json_encode($arr)) to convert the array to a JSON string and then convert it back to an array. Use unserialize(serialize($arr)) to serialize the array to a string and then deserialize it to a new array. Use the RecursiveIteratorIterator to recursively traverse multidimensional arrays.

Application of PHP array grouping function in data sorting Application of PHP array grouping function in data sorting May 04, 2024 pm 01:03 PM

PHP's array_group_by function can group elements in an array based on keys or closure functions, returning an associative array where the key is the group name and the value is an array of elements belonging to the group.

The role of PHP array grouping function in finding duplicate elements The role of PHP array grouping function in finding duplicate elements May 05, 2024 am 09:21 AM

PHP's array_group() function can be used to group an array by a specified key to find duplicate elements. This function works through the following steps: Use key_callback to specify the grouping key. Optionally use value_callback to determine grouping values. Count grouped elements and identify duplicates. Therefore, the array_group() function is very useful for finding and processing duplicate elements.

See all articles