Diggin Catch and Shoot Basketball
& Diggin Catch and Shoot Basketball
Diggin Catch and Shoot Basketball
Diggin Active Toys make it easy for kids to become involved in an active lifestyle. Fun and easy, they help kids learn about sports with soft toys . This Catch and Shoot Basketball Electonic Talking Hoops is an indoor basketball set. Make a basket, and the ball is returned to you. This scaled down version is great to make your room center court.
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One more step! Please check your inbox for an email with subject "7Gadgets: Please Confirm Subscription". You need to click the link in that email. This is a necessary step to ensure you entered the correct email address.为什么篮球中的一接就射（catch and
shoot）会让人感觉比较准？ - 知乎7被浏览1271分享邀请回答2添加评论分享收藏感谢收起0添加评论分享收藏感谢收起查看更多回答The Catch and Shoot | Your No. 1 source for Chicago basketball news
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1480 POSTS13 POSTS12 POSTS10 POSTSjs中的异常处理try...catch使用介绍
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在JavaScript可以使用try...catch来进行异常处理，下面有个不错的示例，大家可以参考下，希望对大家有所帮助
在JavaScript可以使用try...catch来进行异常处理。例如：
代码如下: try { foo.bar();} catch (e) { alert(e.name + ": " + e.message);}
目前我们可能得到的系统异常主要包含以下6种: EvalError: raised when an error occurs executing code in eval() RangeError: raised when a numeric variable or parameter is outside of its valid range ReferenceError: raised when de-referencing an invalid reference SyntaxError: raised when a syntax error occurs while parsing code in eval() TypeError: raised when a variable or parameter is not a valid type URIError: raised when encodeURI() or decodeURI() are passed invalid parameters 上面的六种异常对象都继承自Error对象。他们都支持以下两种构造方法: new Error();new Error("异常信息"); 手工抛出异常的方法如下：
代码如下: try { throw new Error("Whoops!");} catch (e) { alert(e.name + ": " + e.message);}
如要判断异常信息的类型，可在catch中进行判断：
代码如下: try { foo.bar();} catch (e) { if (e instanceof EvalError) { alert(e.name + ":" + e.message); } else if (e instanceof RangeError) { alert(e.name + ": " + e.message); } // etc }
Error具有下面一些主要属性： description: 错误描述 (仅IE可用). fileName: 出错的文件名 (仅Mozilla可用). lineNumber: 出错的行数 (仅Mozilla可用). message: 错误信息 (在IE下同description) name: 错误类型. number: 错误代码 (仅IE可用). stack: 像Java中的Stack Trace一样的错误堆栈信息 (仅Mozilla可用). 因此为了更好的了解错误信息我们可以将catch部分改为如下形式：
代码如下: try { foo.bar();} catch (e) { if (browserType != BROWSER_IE) { alert("name: " + e.name + "message: " + e.message + "lineNumber: " + e.lineNumber + "fileName: " + e.fileName + "stack: " + e.stack); } else { alert("name: " + e.name +"errorNumber: " + (e.number & 0xFFFF ) + "message: " + e.message"); } }
JavaScript中的throw命令事实上可以抛出任何对象，并且我们可以在catch接受到此对象。例如：
代码如下: try { throw new Date(); // 抛出当前时间对象 } catch (e) { alert(e.toLocaleString()); // 使用本地格式显示当前时间 }
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