ArrayGetDouble()

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ArrayGetDouble()

Purpose:

FCJSon::ArrayGetDouble() gets a double value from an array object.

Usage:

fval = FCJSon::ArrayGetDouble(<jsonident>,<arrayidx> [, <key> ]);

Arguments:

integer <jsonident> - A valid json array ident.

integer <arrayidx> - The 0 based index into the json array.

alpha <key> - Optional. Use <key> if the object at <arrayidx> is a json object of <key>:<value> pairs and it contains a double identified by <key>. If the object in the array at idx arrayidx is a double value, then you should not specify <key> when calling FCCom::ArrayGetDouble()

Returns:

float <fval> - A 4c float value.

If this value is equal to -1.0 it may indicate an error and the application should call sys.get_extfn("FCJSon","LastError") to determine if it is an error or a valid value. -1 - Error

Where Used:

FCJSon::ArrayGetDouble() can be called from anywhere.

Example:

Example

Description:

FCJSon::ArrayGetDouble() gets a double value from an array object or from an json object in an array. When getting the value directly from the array, no <key> should be specified. When getting the value from a json object embedded in the array, you must specify the <key> parameter to FCJSon::ArrayGetDouble().

Bugs/Features/Comments: