IsJson()

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Evaluates whether a string is in valid JSON (JavaScript Object Notation) data interchange format.


	IsJson( var=any, format=string );

Returns: Boolean

Argument	Description	Default
var _{any, required}	edit A string or variable that represents one. _{Alias: value}
format _{string, optional}	edit The format of the input string. Possible values are: json: Standard JSON format json5: JSON5 format which allows additional features such as comments and unquoted keys Introduced: 6.2.0.14	json5

Argument

Description

Default

var

_{any,

required}

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A string or variable that represents one.

_{Alias:
value}

format

_{string,

optional}

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The format of the input string. Possible values are:

json: Standard JSON format
json5: JSON5 format which allows additional features such as comments and unquoted keys

Introduced: 6.2.0.14

json5

Examples

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writeDump(label:"Array", var:isJson("[1,2,3]"));
writeDump(label:"Single number value", var:isJson(1));
writeDump(label:"String value", var:isJson('susi12345'));
writeDump(label:"String value with serializeJSON", var:isJson(serializeJSON('susi')));
writeDump(label:"Boolean value with serializeJSON", var:isJson(serializeJSON(true)));
writeDump(label:"CreateDateTime with serializeJSON", var:isJson(serializeJSON(CreateDateTime(2018,1,1,1,1,1))));
qry=queryNew('aaa,bbb', "varchar, varchar", [["a","b"],["c","d"]]);
writeDump(label:"Query", var: isJson(qry));

IsJson()

Examples

See also