我正在从使用JsonpRequestBuilder中抽出时间.
入口点代码如下:
// private static final String SERVER_URL = "http://localhost:8094/data/view/";
private static final String SERVER_URL = "http://www.google.com/calendar/feeds/developer-calendar@google.com/public/full?alt=json-in-script&callback=insertAgenda&orderby=starttime&max-results=15&singleevents=true&sortorder=ascending&futureevents=true";
private static final String SERVER_ERROR = "An error occurred while "
+ "attempting to contact the server. Please check your network "
+ "connection and try again.";
/**
* This is the entry point method.
*/
public void onModuleLoad() {
JsonpRequestBuilder requestBuilder = new JsonpRequestBuilder();
// requestBuilder.setTimeout(10000);
requestBuilder.requestObject(SERVER_URL, new Jazz10RequestCallback());
}
class Jazz10RequestCallback implements AsyncCallback<Article> {
@Override
public void onFailure(Throwable caught) {
Window.alert("Failed …Run Code Online (Sandbox Code Playgroud) 我有这段代码:
var has_logger = (window.console && window.console.log);
if (has_logger) {
window.console.log(data);
}
Run Code Online (Sandbox Code Playgroud)
has_logger而不是一个布尔值,实际上是初始化为一个函数对象(function log() { [native code] })
我的问题:
现代浏览器中没有必要测试console.log,对吗?
初始化has_logger为布尔值而不是函数对象的正确方法是什么?
希望这个标题非常明确.
我想看一个alter table语句的示例,它可以将Sybase表中现有的非可空列更改为可为空.
这是我的 sql 语句
IF EXISTS (select 1 from sysobjects where name = 'PNL_VALUE_ESTIMATE')
drop table dbo.PNL_VALUE_ESTIMATE
go
Run Code Online (Sandbox Code Playgroud)
isql 退出此错误消息
Msg 102, Level 15, State 1:
Server 'DB_SERVER', Line 3:
Incorrect syntax near 'go'.
Run Code Online (Sandbox Code Playgroud)
但是 sql 语句对我来说是正确的。怎么了?
Sybase 版本是 15
这是代码:
class Dummy(object):
def __init__(self, v):
self.ticker = v
def main():
def _assign_custom_str(x):
def _show_ticker(t):
return t.ticker
x.__str__ = _show_ticker
x.__repr__ = _show_ticker
return x
a = [Dummy(1), Dummy(2)]
a1 = [_assign_custom_str(t) for t in a]
print a1[1]
# print a1[1].__str__ # test to if orig __str__ is replaced
Run Code Online (Sandbox Code Playgroud)
我希望看到像这样的输出
2
Run Code Online (Sandbox Code Playgroud)
但是,相反,我看到了标准表示:
<__main__.Dummy object at 0x01237730>
Run Code Online (Sandbox Code Playgroud)
为什么?
抱歉这样一个基本问题,但我刚刚开始使用元组
这是我的代码
func test() -> (authorName:String, numberOfViews:Int) {
let author : String = ""
let numberViews = 0
return(authorName : author, numberOfView : numberViews)
}
Run Code Online (Sandbox Code Playgroud)
任何人都可以提供正确的方法来做到这一点
提前致谢
这是有问题的代码:
const data =
results.responses.map((response, idx) =>
{ id: idx+1,
name: response.name,
email: response.email,
comment: response.comment
}
)
Run Code Online (Sandbox Code Playgroud)
我正在使用babel将es6代码翻译为javascript.这是错误消息:
Module build failed: SyntaxError: /Users/antkong/dev/project/form.js: Unexpected token (60:14)
58 | results.responses.map((response, idx) =>
59 | { id: idx+1,
> 60 | name: response.name,
| ^
61 | email: response.email,
62 | comment: response.comment
63 | }
Run Code Online (Sandbox Code Playgroud)
为什么会出现语法错误?
字段被定义为array(varchar)模式分析。
我想搜索字段包含特定文本模式的记录,说道'ABCD'。
如果我运行这个 SQL:
select * from data_table
where top_results like '%ABCD%'
Run Code Online (Sandbox Code Playgroud)
它抛出这个错误:
查询失败 (#20190730_021145_23663_dn9fj):第 2:7 行:LIKE 表达式的左侧必须计算为 varchar(实际:array(varchar)
检测某个字符串是否存在的正确语法是什么?
我正在bazel为我的项目构建和运行测试。
我想更深入地了解我的测试是如何运行的。我希望能够在我的 java 应用程序中看到记录器捕获的输出。
我尝试添加-s参数来开始我的测试,如下所示:bazel test -s //myproject:integration-test
它为我提供了有关如何调用测试的更多信息:
remote: Resolving deltas: 100% (101/101), completed with 18 local objects.
To github.com:Canva/canva.git
$ bazel test -s //myproject:integration-tests
WARNING: The following rc files are no longer being read, please transfer their contents or import their path into one of the standard rc files:
/nix/store/qsmyc0p2z1z3m06ch37hz49m0hz2c270-bazel-rc
INFO: Invocation ID: 2d17fb35-c72b-4152-bf14-2805027c6c01
INFO: Analyzed target //myproject:integration-tests (0 packages loaded, 0 targets configured).
INFO: Found 1 test target...
SUBCOMMAND: # //myproject:integration-tests [action …Run Code Online (Sandbox Code Playgroud) 我的磁盘空间非常低(512G SSD 驱动器只有 11G)。我需要更多的空间来进行我的开发工作。
该应用程序识别的大文件之一CleanMyMac X是:/Users/antkong/Library/Containers/com.docker.docker/Data/vms/0/data/Docker.raw
我已经做了一个docker images,加起来不能达到64G
$ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
zookeeper 3.4.14 ab94f52d366f 13 days ago 256MB
node 10 aa5532763c11 2 weeks ago 911MB
mongo 4 bcef5789979d 2 weeks ago 386MB
solr 6 0f559c1dfcc2 5 weeks ago 425MB
amazon/dynamodb-local latest 2908e432b67a 6 weeks ago 611MB
grokzen/redis-cluster latest 05627925dc7b 7 weeks ago 540MB
mysql-server 8.0 a7a38888d42d 8 weeks ago 381MB
redis 5.0.6 de25a823540b 4 months ago 98.2MB
solr 7.4.0 …Run Code Online (Sandbox Code Playgroud)