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How do I append text to a file?
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How can i do this when the file need root permission?
– UselesssCat
Jul 18 '17 at 13:52
2
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Why does changing the sum order returns a different result?
...ngZhengLi: While it's certainly important to understand that, it's not the root cause in this case. You could write a similar example with values which are represented exactly in binary, and see the same effect. The problem here is maintaining large scale information and small scale information at t...
Can local storage ever be considered secure? [closed]
...ed either to compromise the app itself (to read memory locations), or gain root access to the box (compromise the OS). Either way, you need to compromise something deeper than just do normal behavior. JS allows this in normal behavior. Which is the problem...
– ircmaxell
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How can I add some small utility functions to my AngularJS application?
...t a couple of the point @nicolas makes below are good. For one, injecting $rootScope and attaching the helpers there will keep you from having to add them for every controller. Also - I agree that if what you're adding should be thought of as Angular services OR filters, they should be adopted into ...
What is the rationale for all comparisons returning false for IEEE754 NaN values?
...ng a function to arguments outside its domain, including taking the square root of a negative number, taking the logarithm of a negative number, taking the tangent of an odd multiple of 90 degrees (or π/2 radians), or taking the inverse sine or cosine of a number which is less than -1 or greater th...
What's an elegant way to conditionally add a class to an HTML element in a view?
...lass_string(ok: @success) do %>
<% end %>
<% link_to "Hello", root_path, class: class_string(ok: @success) do %>
<% end %>
Either/Or Classes
For use cases where a ternary would be necessary (e.g. @success ? 'good' : 'bad'), pass an array where the first element is the class ...
Is the creation of Java class files deterministic?
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@GaborSch The root problem is that we want to implement an efficient "online update" of our application for which users would only fetch modified JARs from the website. I can create identical JARs having identical class files as input. But...
How to get the source directory of a Bash script from within the script itself?
...$0")"
readlink will resolve the script path to an absolute path from the root of the filesystem. So, any paths containing single or double dots, tildes and/or symbolic links will be resolved to a full path.
Here's a script demonstrating each of these, whatdir.sh:
#!/bin/bash
echo "pwd: `pwd`"
ec...
What is a Java ClassLoader?
... there is more than one class loader, they are represented in a tree whose root is the bootstrap class loader. Each class loader has a reference to its parent class loader. When a class loader is asked to load a class, it consults its parent class loader before attempting to load the item itself. Th...
When to use static classes in C# [duplicate]
...r static or non-static, but when you are in doubt just go back to your OOP roots and try to think about what you are representing. Is this an object that is performing an action (a car that can speed up, slow down, turn) or something more abstract (like displaying output).
Get in touch with your i...