
The C-level API 465
■ The vp argument is a pointer to the jsval structure into which the contents of the string
should be copied.
Returns
A Boolean value: JS_TRUE indicates success; JS_FALSE indicates failure.
JSBool JS_DoubleToValue()
Description
This function stores a floating-point number return value in a jsval structure.
Arguments
JSContext *cx, double dv, jsval *vp
■ The cx argument is the opaque JSContext pointer that passes to the JavaScript function.
■ The dv argument is an 8-byte floating-point number.
■ The vp argument is a pointer to the jsval structure into which the contents of the double
should be copied.
Returns
A Boolean value: JS_TRUE indicates success; JS_FALSE indicates failure.
JSVal JS_BooleanToValue()
Description
This function stores a Boolean return value in a jsval structure.
Arguments
JSBool bv
■ The bv argument is a Boolean value: JS_TRUE indicates success; JS_FALSE indicates
failure.
Returns
A JSVal structure that contains the Boolean value that passes to the function as an argument.
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