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SSH Private Key Permissions using Git GUI or ssh-keygen are too open
...the permissions on the whole directory, which I agree with Splash is a bad idea. If you can remember what the original permissions for the directory are, I would try to set them back to that and then do the following
cd ~/.ssh
chmod 700 id_rsa
inside the .ssh folder. That will set the id_rsa fi...
What's the difference between an id and a class?
...on class elements are things like highlight or external-link.
It's a good idea to read up on the cascade and understand the precedence assigned to various selectors: http://www.w3.org/TR/CSS2/cascade.html
The most basic precedence you should understand, however, is that id selectors take precedenc...
What are best practices that you use when writing Objective-C and Cocoa? [closed]
...UI if it's on your main thread. If you have a very long query, It's a good idea to store your queries as static objects, and run your SQL on a separate thread. Make sure to wrap anything that modifies the database for query strings in @synchronize() {} blocks. For short queries just leave things on...
How to use a custom comparison function in Python 3?
...l obviously need to be more complicated. That should give you the general idea though.
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How to use z-index in svg elements?
...5" fill="pink" cx="35" cy="20" r="15"/>
</svg>
The basic idea is:
Use D3 to select the SVG DOM elements.
var circles = d3.selectAll('circle')
Create some array of z-indices with a 1:1 relationship with your SVG elements (that you want to reorder). Z-index arrays used in the exa...
How to get overall CPU usage (e.g. 57%) on Linux [closed]
... or using this for any serious work. This was not tested nor used, it's an idea for people who do not want to install a utility or for something that works in any distribution. Some people think you can "apt-get install" anything.
NOTE: this is not the current CPU usage, but the overall CPU usage ...
Why can I change value of a constant in javascript
...hat this is not a bug, but it should work this way? Because I thought that idea of the constant is that it can not be changed. Basically a programmer has trust that no matter what will happen, nothing can change the value inside of my constant.
– Salvador Dali
...
design a stack such that getMinimum( ) should be O(1)
...raints mentioned (constant time operations) and constant extra space.
The idea is to store the difference between min value and the input number, and update the min value if it is no longer the minimum.
The code is as follows:
public class MinStack {
long min;
Stack<Long> stack;
...
Why use the 'ref' keyword when passing an object?
...es the string for another one that has a different value.
It is not a good idea to use ref unless it is needed. Using ref gives the method freedom to change the argument for something else, callers of the method will need to be coded to ensure they handle this possibility.
Also, when the parameter t...
Organizing a multiple-file Go project [closed]
...her project. In other words, if they are private support files. That's the idea behind having lib --to separate public from private interfaces.
Doing things this way will give you a nice import path, myproj.org/mypack to reuse the code in other projects. If you use lib then internal support files w...