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nginx: [emerg] could not build the server_names_hash, you should increase server_names_hash_bucket_s
...g this in userdata when provisioning an ec2 instance. so basically in bash script?
– shan
Jul 22 at 20:28
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Python module os.chmod(file, 664) does not change the permission to rw-rw-r— but -w--wx----
...e event that some later developer comes through and wants to make this old script use, for example, sgid with 2755 but then can't figure out why the perms are completely screwed up. ;)
– dannysauer
Feb 4 at 22:32
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Default value of a type at Runtime [duplicate]
For any given type i want to know its default value.
6 Answers
6
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Is there a way to instantiate objects from a string holding their class name?
... runtime. You can use a map to do that mapping yourself, though:
template<typename T> Base * createInstance() { return new T; }
typedef std::map<std::string, Base*(*)()> map_type;
map_type map;
map["DerivedA"] = &createInstance<DerivedA>;
map["DerivedB"] = &createInstanc...
How to place div side by side
... many ways to do what you're asking for:
Using CSS float property:
<div style="width: 100%; overflow: hidden;">
<div style="width: 600px; float: left;"> Left </div>
<div style="margin-left: 620px;"> Right </div>
</div>
Using CSS display pro...
How do you clear Apache Maven's cache?
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Delete the artifacts (or the full local repo) from c:\Users\<username>\.m2\repository by hand.
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How to vertically align elements in ?
I have a horizontal <ul> and I need to center each <li> in it vertically. My markup is below. Each <li> has a border, and I need the items as well as their contents to be in the middle vertically. Please help; I am new to CSS.
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How to style the UL list to a single line
...ng (CSS3 compliant)
ul
{
display:flex;
list-style:none;
}
<ul>
<li><a href="">Item1</a></li>
<li><a href="">Item2</a></li>
<li><a href="">Item3</a></li>
</ul>
...
Is there a best practice for generating html with javascript
...formance hit, and is really, really straightforward:
var t = $.template('<div><img src="${url}" />${name}</div>');
$(selector).append( t , {
url: jsonObj.url,
name: jsonObj.name
});
I say go the cool route (and better performing, more maintainable), and use templating...
Set the table column width constant regardless of the amount of text in its cells?
...d {
border: 1px solid black;
width: 100px;
overflow: hidden;
}
<table>
<tr>
<th>header 1</th>
<th>header 234567895678657</th>
</tr>
<tr>
<td>data asdfasdfasdfasdfasdf</td>
<td>data 2</td>
...