String, object, and JSON handler functions in node. js

querystring. Parse ()

Turning a string into an object is the parameter string that is taken on the URL to the array object.

QueryString. Parse (str, [Sep], [EQ], [options])

Receive parameters:

STR to convert the string

Sep set delimiter, default to ' & '

EQ setting Assignment, default = ' = '

[Options] Maxkeys The maximum length of an acceptable string, default is 1000

Querystring.parse (' Foo=bar&baz=qux&baz=quux&corge ')//  returns' Bar ', Baz: [' Qux ', ' Quux '], Corge: '}

Querystring.stringify ()

The object is formatted as a parameter string, and obj is the object to be formatted, the required parameter.

Querystring.stringify (Obj,[sep],[eq])

var a = {a:1,b:2}; Json.stringify (a); // Result: "{" A ": 1," B ": 2}"

Json.parse () and Json.stringify ()

Parse is used to parse a JSON object from a string, such as

var str = ' {' name ': ' Huangxiaojian ', ' age ': ' + '} '// Result:'"" Huangxiaojian " __proto__: Object

Stringify () is used to parse out a string from an object, such as

var a = {a:1,b:2}// Result:json.stringify (a)"{" A ": 1," B ": 2}"

String, object, and JSON handler functions in node. js