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django models selecting single field
... a good optimization technique, but make sure that you do not create these extra queries. Otherwise you will lose performance instead of gaining it.
– Eerik Sven Puudist
Jul 19 at 18:47
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Remove all the children DOM elements in div
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In Dojo 1.7 or newer, use domConstruct.empty(String|DomNode):
require(["dojo/dom-construct"], function(domConstruct){
// Empty node's children byId:
domConstruct.empty("someId");
});
In older Dojo, use dojo.empty(String|DomNode) (deprecated at Dojo 1.8):
dojo.em...
Bower install using only https?
...he section we added to the git config file
# Of course we have our own extra cleanup to do via sed since the unset command
# leaves the section around
# See http://git.661346.n2.nabble.com/git-config-unset-does-not-remove-section-td7569639.html
git config --global --unset url."https:...
Spring Java Config: how do you create a prototype-scoped @Bean with runtime arguments?
...class, a @Bean method like so
@Bean
@Scope("prototype")
public Thing thing(String name) {
return new Thing(name);
}
is used to register a bean definition and provide the factory for creating the bean. The bean that it defines is only instantiated upon request using arguments that are determined...
What does the exclamation mark do before the function?
...l generally change the above code as
(function (){}())
Now we added two extra characters (,) apart from adding () at the end of the function which necessary to call the function. In the process of minification we generally focus to reduce the file size. So we can also write the above function as
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Maven: best way of linking custom external JAR to my project?
...g with maven I suggest to use maven directly not IDE plugins as it adds an extra layer of complexity.
As for the error, do you put the required jars on your classpath? If you are using types from the library, you need to have access to it in the runtime as well. This has nothing to do with maven it...
What is the purpose of XORing a register with itself? [duplicate]
... of buffer overflows, etc. Why avoid the 0 ? Well, 0 represents the end of string in c/c++ and the shell code would be truncated if the mean of exploitation is a string processing function or the like.
Btw im referring to the original question: "Any reason to do a “xor eax, eax”?" not what the ...
How to query as GROUP BY in django?
...bquery
Or in a custom manager as shown in the online Django docs:
Adding extra Manager methods
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Is it possible to specify the schema when connecting to postgres with JDBC?
...of version 9.4, you can use the currentSchema parameter in your connection string.
For example:
jdbc:postgresql://localhost:5432/mydatabase?currentSchema=myschema
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Explanation of strong and weak storage in iOS5
... Another good one is Helium balloons: as long as at least one string is held, it's not going to float away. The leash/balloon analogies are also good at getting people to forget that "ownership" is managed by retain/release.
– Steve Weller
Feb 13 '...