书记处书记是什么级别

Baseline Widely available *
百度 一位女士称，光天化日在同一街区被抢劫4次，警方毫无线索，她将联合其他受害者通过司法程序讨个说法。

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

* Some parts of this feature may have varying levels of support.

JSON ??? JavaScript Object Notation(JSON)? ????? ?? JSON?? ???? ???? ??? ????. JSON? ?? ????? ????? ??? ? ???, ? ?? ???? ???? ???? ???? ??? ????.

JavaScript? JSON? ??

JSON? ??, ??, ??, ???, ???? null? ????? ?? ????, JavaScript ??? ??? ?? ??? ??? ???? ??? ????. ?, ?? JavaScript? JSON? ????.

??? ??

??? ??? ??? ????? ??? ?????? ???. ?? ??? ???? ????.

??

?? 0? ???? ????. ??? ??? ??? ? ???? ???? ???. NaN? Infinity? ???? ????.

?? JSON ???? ??? JavaScript ???...

...???, ?? JSON ???? ??? ECMA-262? ??? ??? ??? JavaScript ????? ?????. ?? ?????, U+2028 LINE SEPARATOR? U+2029 PARAGRAPH SEPARATOR? JSON?? ??? ???? ??? ?? ??? ? ???, JavaScript ??? ????? ???? SyntaxError? ?????.

JSON.parse()? JSON ???? ???? eval? JavaScript ???? ???? ?? ??? ?????.

js
const code = '"\u2028\u2029"';
JSON.parse(code); // ?? ???? "\u2028\u2029"? ??
eval(code); // ??? ???? SyntaxError

?? ?????? ???? ????? ???, ?? ? undefined ???? ????. JSON? ???, ?? ?? ???? ?? ??? ??? Babel ????? ???? JSON5? ??, ? ? ?? ??? YAML? ????.

?? JSON ??

js
    JSON = null
        or true or false
        or JSONNumber
        or JSONString
        or JSONObject
        or JSONArray

    JSONNumber = - PositiveNumber
              or PositiveNumber
    PositiveNumber = DecimalNumber
                  or DecimalNumber . Digits
                  or DecimalNumber . Digits ExponentPart
                  or DecimalNumber ExponentPart
    DecimalNumber = 0
                 or OneToNine Digits
    ExponentPart = e Exponent
                or E Exponent
    Exponent = Digits
            or + Digits
            or - Digits
    Digits = Digit
          or Digits Digit
    Digit = 0 through 9
    OneToNine = 1 through 9

    JSONString = ""
              or " StringCharacters "
    StringCharacters = StringCharacter
                    or StringCharacters StringCharacter
    StringCharacter = any character
                      except " or \ or U+0000 through U+001F
                   or EscapeSequence
    EscapeSequence = \" or \/ or \\ or \b or \f or \n or \r or \t
                  or \u HexDigit HexDigit HexDigit HexDigit
    HexDigit = 0 through 9
            or A through F
            or a through f

    JSONObject = { }
              or { Members }
    Members = JSONString : JSON
           or Members , JSONString : JSON

    JSONArray = [ ]
             or [ ArrayElements ]
    ArrayElements = JSON
                 or ArrayElements , JSON

???? ?? ??? JSONNumber(???? ??? ??? ?) ?? JSONString(????? ?? ??? ????? ??? ???) ?? ???? ???? ??? ? ????. ? ??(U+0009), ??? ??(U+000D), ?? ??(U+000A) ? ????(U+0020) ???? ??? ?? ?????.

???

JSON.parse()

???? JSON??? ?? ????, ????? ?? ??? ?? ??? ??? ?????.

JSON.stringify()

??? ?? ???? JSON ???? ?????. ?? ???? ?? ??? ????? ??? ?? ???? ??? ?????.

???

Specification
ECMAScript? 2026 Language?Specification
# sec-json-object

???? ???

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