我在Firefox 3.6.11运行测试,如果该事项,和eval在通话和应用的上下文中行为不端。它以某种方式跳过目前的'this'对象。为什么?如何JavaScript的EVAL手柄“这个”
dojo.provide("yal-js.tests.javascript");
function evaltest() {
var dis=this;
// it works now... returns 2 on call and apply
return eval("(function() {return this.testValue;}).call(dis);");
// this, however, didn't work: it returned 1, not 2
//return eval("(function() {return this.testValue;})();");
}
function controltest() {
return this.testValue;
}
var testValue=1;
var testObj={testValue: 2};
doh.register("tests.javascript",
new TFRunGroup(
["direct",
function() {doh.assertEqual(1,controltest());} ],
["call",
function() {doh.assertEqual(2, controltest.call(testObj));}],
["apply",
function() {doh.assertEqual(2, controltest.apply(testObj));}],
["eval direct",
function() {doh.assertEqual(1,evaltest());} ],
["eval call",
function() {doh.assertEqual(2, evaltest.call(testObj));}],
["eval apply",
function() {doh.assertEqual(2, evaltest.apply(testObj));}]
));
@Dmitri:也许他认为'eval'是不是你的代码的问题。并且请与试图帮助你的人一起更礼貌。 – Chetan 2010-10-27 05:33:09