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Why 0 is true but false is 1 in the shell?
...failure - why it happened, how to fix it, etc. Having zero mean 'success' and non-zero mean failure lets you can check pretty easily for success, and investigate the particular error for more details if you want to. A lot of APIs and frameworks have a similar convention - functions that succeed re...
How to split a sequence into two pieces by predicate?
... span.
The first one, partition will put all "true" elements in one list, and the others in the second list.
span will put all elements in one list until an element is "false" (in terms of the predicate). From that point forward, it will put the elements in the second list.
scala> Seq(1,2,3,4)...
Vim: How to insert in visual block mode?
...t+i or capital I.
Lowercase i will not work.
Then type the things you want and finally to apply it to all lines, press Esc twice.
If this doesn't work...
Check if you have +visualextra enabled in your version of Vim.
You can do this by typing in :ver and scrolling through the list of features. (Y...
Why is volatile needed in C?
...ther thread running that also uses the variable; or when there's a signal handler that might change the value of the variable.
Let's say you have a little piece of hardware that is mapped into RAM somewhere and that has two addresses: a command port and a data port:
typedef struct
{
int command;...
Spring Java Config: how do you create a prototype-scoped @Bean with runtime arguments?
...me) {
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 either directly or through scanning that ApplicationContext.
In the case of a proto...
How come an array's address is equal to its value in C?
In the following bit of code, pointer values and pointer addresses differ as expected.
6 Answers
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How do you include additional files using VS2010 web deployment packages?
...esting out using the new web packaging functionality in visual studio 2010 and came across a situation where I use a pre-build event to copy required .dll's into my bin folder that my app relies on for API calls. They cannot be included as a reference since they are not COM dlls that can be used wit...
Scaling Node.js
...vered safe because they have experts testing there login-systems for holes and the also don't transmit passwords via plain-text but thank for god use https. I also have answered a topic for a user who wanted to use facebook-connect.
validation of input data
To validate input you could use node-val...
How to move certain commits to be based on another branch in git?
... Just for the records: with SmartGit's log just drag q2a onto X and select Rebase 2 commits from the options of the occurring dialog.
– Thomas S.
Jul 27 '15 at 7:20
1
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How to convert JSON to CSV format and store in a variable
...ead it. Is there a way to convert this data using JavaScript in CSV format and save it in JavaScript file?
16 Answers
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