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How to check if command line tools is installed
I have a macbook pro with OS m>X m> 10.8.2.
m>X m>Code is installed. I know this as it appears in the Applications directory.
There are also the m>x m>codebuild and m>x m>code-select files in /usr/bin
I need to know if the command line tools is installed.
Is there a command for it?
What can I do to see if m>X m>Code CLT is ...
How does SSL really work?
...ce then, this has turned into a fairly popular question/answer, so I have em>x m>panded it a bit and made it more precise.
TLS Capabilities
"SSL" is the name that is most often used to refer to this protocol, but SSL specifically refers to the proprietary protocol designed by Netscape in the mid 90's....
Can a shell script set environment variables of the calling shell? [duplicate]
...
Use the "dot space script" calling syntam>x m>. For em>x m>ample, here's how to do it using the full path to a script:
. /path/to/set_env_vars.sh
And here's how to do it if you're in the same directory as the script:
. set_env_vars.sh
These em>x m>ecute the script under the...
Format a datetime into a string with milliseconds
I want to have a datetime string from the date with milliseconds. This code is typical for me and I'm eager to learn how to shorten it.
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SQL - Rounding off to 2 decimal places
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Could you not cast your result as numeric(m>x m>,2)? Where m>x m> <= 38
select
round(630/60.0,2),
cast(round(630/60.0,2) as numeric(36,2))
Returns
10.500000 10.50
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MFC中通过Tooltip类实现悬浮鼠标显示提示信息 - C/C++ - 清泛网 - 专注C/C++及内核技术
MFC中通过Tooltip类实现悬浮鼠标显示提示信息方法一：利用CWnd本身自身支持的tooptip来实现，这种方法适用给控件增加tooltip，非常方便和简单方法如下：1、在窗口中增加消息映射ON_NOTI...方法一：
利用CWnd本身自身支持的tooptip来...
What is the most efficient way to create HTML elements using jQuery?
...div>');
some numbers on the suggestions so far (safari 3.2.1 / mac os m>x m>):
var it = 50000;
var start = new Date().getTime();
for (i = 0; i < it; ++i) {
// test creation of an element
// see below statements
}
var end = new Date().getTime();
alert( end - start );
var e...
How to add a filter class in Spring Boot?
...ant to setup a third-party filter you can use FilterRegistrationBean.
For em>x m>ample the equivalent of web.m>x m>ml
<filter>
<filter-name>SomeFilter</filter-name>
<filter-class>com.somecompany.SomeFilter</filter-class>
</filter>
<filter-mapping>
&l...
Javascript calculate the day of the year (1 - 366)
How do I use javascript to calculate the day of the year, from 1 - 366? For em>x m>ample:
22 Answers
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Creating an object: with or without `new` [duplicate]
...mplest way to create an object, and is just the same as when you write int m>x m> = 0;
The second creates an object with dynamic storage duration and allows two things:
Fine control over the lifetime of the object, since it does not go out of scope automatically; you must destroy it em>x m>plicitly using t...