JSConstDoubleSpec

Describes a double value and assigns it a name.

struct JSConstDoubleSpec {
    jsdouble dval;
    const char *name;
    uint8 flags;
    uint8 spare[3];
};

Name	Type	Description
`dval`	`jsdouble`	Value for the double.
`name`	`const char *`	Name to assign the double.
`flags`	`uint8`	Property attributes for the double. Currently these can be 0 or more of the following values `OR`'d: `JSPROP_ENUMERATE`: property is visible in `for` loops. `JSPROP_READONLY`: property is read-only. `JSPROP_PERMANENT`: property cannot be deleted. `JSPROP_EXPORTED`: property can be exported outside its object. `JSPROP_INDEX`: property is actually an array element. If this field is `0`, `JS_DefineConstDoubles` uses the default attributes `JSPROP_READONLY \| JSPROP_PERMANENT` instead.
`spare`	`uint8[3]`	Reserved for future use.

JSConstDoubleSpecs is used to define a set of double values that are assigned as properties to an object using JS_DefineConstDoubles.

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