JSValueCompare(_:_:_:_:)

Declaration

func JSValueCompare(_ ctx: JSContextRef, _ left: JSValueRef, _ right: JSValueRef, _ exception: UnsafeMutablePointer<JSValueRef?>?) -> JSRelationCondition

Parameters

• ctx:

  The execution context to use.

• left:

  The JSValue as the left operand.

• right:

  The JSValue as the right operand.

• exception:

  A pointer to a JSValueRef in which to store an exception, if any. To reliable detect exception, initialize this to null before the call. Pass NULL if you do not care to store an exception.

Return Value

A value of JSRelationCondition, a kJSRelationConditionUndefined is returned if an exception is thrown.

Discussion

Compares two JSValues.

The result is computed by comparing the results of JavaScript’s ==, <, and > operators. If either left or right is (or would coerce to) NaN in JavaScript, then the result is kJSRelationConditionUndefined.