gumbo

就像是： var jsonString = '{ "Id": 1, "Name": "Coke" }'; //should be true IsJsonString(jsonString); //should be false IsJsonString("foo"); IsJsonString("<div>foo</div>") 解决方案不应包含try / catch。 我们中的一些人打开“打破所有错误”，他们不喜欢调试器打破那些无效的JSON字符串。 #1楼 function get_json(txt) { var data try { data = eval('('+txt+')'); } catch(e){ data = false; } return data; } 如果有错误，则返回false。 如果没有错误，则返回json数据 #2楼 我知道我对这个问题迟到了3年，但我感觉很高兴。 尽管Gumbo的解决方案效果很好，但它不能处理少数情况下 JSON.parse({something that isn't JSON}) 异常）不会引发异常的情况。 我还希望同时返回解析后的JSON，因此调用代码不必再次调用 JSON.parse(jsonString) 。 这似乎很好地满足了我的需求： function tryParseJSON (jsonString){ try {

I have spark.components.TileGroup that contains buttons. I would like the buttons to appear like tabs on top of the ViewStack they serve At the moment, if I have 6 items in the TileList it lays it out as 2 rows with 4 items in the top tow and 2 in the bottom, so the jaggy edge is at the bottom [ITEM 1][ITEM 2][ITEM 3][ITEM 4] [ITEM 5][ITEM 6] I would like it to look like this, with the jaggy edge on top [ITEM 5][ITEM 6] [ITEM 1][ITEM 2][ITEM 3][ITEM 4] The order of the items is not important How would I do this? Define a new layout that lays the tiles out the way you want. some links to get

Has anyone successfully implemented a custom preloader in Flex 4? In my experience, when I specify a custom preloader using the preloader="com.foo.MyPreloader" in the Application tag, the preloader does not display until the SWF is completely downloaded, defeating the purpose of the preloader! Perhaps this is a bug in the still-beta Flex 4 framework? Simon Lenoir I've been using this example in many Flex3 projects. It's still working with Flex4 sdk: I can remember where I get it from. And you are right when you say it's important that this script is NOT referencing anything... <s:Application