C-Level Extensibility > The C-level extensibility API > JSBool JS_ValueToDouble() |
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Description
Extracts a function argument from a jsval
, converts it to a double (if possible), and passes the converted value back to the caller.
Arguments
JSContext
*cx,
jsval
v,
double
*dp
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cx is the opaque JSContext pointer that was passed to the JavaScript function. |
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v is the jsval from which the string is to be extracted. |
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dp is a pointer to an 8-byte double. This function stores the converted value in *dp . |
Returns
A Boolean value indicating success (JS_TRUE
) or failure (JS_FALSE
).
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