existsByPath

The existsByPath method checks whether a specified path exists in the JSON array.

Syntax

existsByPath( path )

Arguments

Argument Description
path (string) The path to check. Construct the path from array indexes and object attribute names, and use a slash (/) as the separator. If an object attribute name includes a slash, then escape the slash with a backslash, for example "one\\/two". Notice that you must also escape a backslash with another backslash.

Returns

(Boolean) Returns true if the path exists, false otherwise.

Example

local myJsonObject = LuaJsonObject:new( { product="IDOL" , version=11 } )
local myJsonArray = LuaJsonArray:new("zero",1,2,myJsonObject)

print (myJsonArray:existsByPath("3/product"))
-- true (LuaJsonArrays are zero-indexed)

See Also


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