Method abs

rhino/src/main/java/org/mozilla/javascript/NativeMath.java:91–98

(
            Context cx, JSFunction f, Object nt, VarScope s, Object thisObj, Object[] args)

    }

    private static Object abs(
            Context cx, JSFunction f, Object nt, VarScope s, Object thisObj, Object[] args) {
        double x = ScriptRuntime.toNumber(args, 0);
        // abs(-0.0) should be 0.0, but -0.0 < 0.0 == false
        x = (x == 0.0) ? 0.0 : (x < 0.0) ? -x : x;

        return ScriptRuntime.wrapNumber(x);
    }

    private static Object acos(
            Context cx, JSFunction f, Object nt, VarScope s, Object thisObj, Object[] args) {