Three ways to convert strings to json in js_json
ECMA-262(E3) does not write the JSON concept into the standard. Fortunately, the concept of JSON is in ECMA-262(E5) was officially introduced, including the global JSON object and Date's toJSON method.
1. The eval method is parsed. I am afraid this is the earliest parsing method. As follows:
function strToJson(str){
var json = eval('(' str ')');
return json;
}
Remember not to forget the parentheses on both sides of str.
2. The new Function form is quite weird. As follows
function strToJson(str){
var json = (new Function("return " str))();
return json;
}
3, use the global JSON object, as follows:
function strToJson(str){
return JSON.parse(str);
}
Currently IE8(S)/Firefox3.5/Chrome4/Safari4/Opera10 has implemented this method. The following is some information: http://blogs.msdn.com/ ie/archive/2008/09/10/native-json-in-ie8.aspx https://developer.mozilla.org/en/Using_JSON_in_Firefox
Using JSON.parse needs to be strict Comply with the JSON specification. For example, attributes need to be enclosed in quotation marks, as follows:
var str = '{name:"jack"}';
var obj = JSON.parse(str); // --> parse error
name is not enclosed in quotes Now, when using JSON.parse, exceptions are thrown in all browsers and parsing fails. The first two methods are fine.
See also: Special implementation of JSON.parse in Chrome

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

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.

Detailed explanation of the method of converting int type to string in PHP In PHP development, we often encounter the need to convert int type to string type. This conversion can be achieved in a variety of ways. This article will introduce several common methods in detail, with specific code examples to help readers better understand. 1. Use PHP’s built-in function strval(). PHP provides a built-in function strval() that can convert variables of different types into string types. When we need to convert int type to string type,

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

How to check if a string starts with a specific character in Golang? When programming in Golang, you often encounter situations where you need to check whether a string begins with a specific character. To meet this requirement, we can use the functions provided by the strings package in Golang to achieve this. Next, we will introduce in detail how to use Golang to check whether a string starts with a specific character, with specific code examples. In Golang, we can use HasPrefix from the strings package

Title: How to determine whether a string ends with a specific character in Golang. In the Go language, sometimes we need to determine whether a string ends with a specific character. This is very common when processing strings. This article will introduce how to use the Go language to implement this function, and provide code examples for your reference. First, let's take a look at how to determine whether a string ends with a specified character in Golang. The characters in a string in Golang can be obtained through indexing, and the length of the string can be

1. First open pycharm and enter the pycharm homepage. 2. Then create a new python script, right-click - click new - click pythonfile. 3. Enter a string, code: s="-". 4. Then you need to repeat the symbols in the string 20 times, code: s1=s*20. 5. Enter the print output code, code: print(s1). 6. Finally run the script and you will see our return value at the bottom: - repeated 20 times.

PHP String Operation: A Practical Method to Effectively Remove Spaces In PHP development, you often encounter situations where you need to remove spaces from a string. Removing spaces can make the string cleaner and facilitate subsequent data processing and display. This article will introduce several effective and practical methods for removing spaces, and attach specific code examples. Method 1: Use the PHP built-in function trim(). The PHP built-in function trim() can remove spaces at both ends of the string (including spaces, tabs, newlines, etc.). It is very convenient and easy to use.

As a scripting language widely used to develop web applications, PHP has very powerful string processing functions. In daily development, we often encounter operations that require deleting a string, especially the last two characters of the string. This article will introduce two PHP techniques for deleting the last two characters of a string and provide specific code examples. Tip 1: Use the substr function The substr function in PHP is used to return a part of a string. We can easily remove characters by specifying the string and starting position
