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What does bundle exec rake mean?
...
I have not used bundle exec much, but am setting it up now.
I have had instances where the wrong rake was used and much time wasted tracking down the problem. This helps you avoid that.
Here's how to set up RVM so you can use bundle exec by default within a specific project d...
Unsafe JavaScript attempt to access frame with URL
...ge/, instead of doing
parent.location.hash = "#foobar";
you do need to know the parents location and do
parent.location = "http://example.com/page/#foobar";
Since the resource is not navigated this will work as expected, only changing the hash part of the url.
If you are using this for cross-...
How to resolve “Error: bad index – Fatal: index file corrupt” when using Git
...git daemon (running under Cygwin on WinXP) and cloned the repository once.
Now, I get this error with the cloned repository:
...
How to load up CSS files using Javascript?
...his is quite more complex to do reliably. The popular Javascript libraries now usually have some form of loading javascript and stylesheets with a callback. As an example, see YUI Get.
– user58777
Aug 5 '12 at 12:42
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Difference between string and text in rails?
...lumn without realizing this and all future rows where the value is true is now t. Does anyone have any insights into this behaviour?
– Peter
Aug 11 '15 at 18:25
1
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bootstrap modal removes scroll bar
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Added some more details. Better now?
– flup
Jul 31 '14 at 22:52
14
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How to show first commit by 'git log'?
... initially separate tools, git-gui, gitweb, and git-p4). In this case, we know that e83c516 is the one we are probably interested in. It is both the earliest commit and a root commit.
It is not so simple in the general case.
Imagine that libfoo has been in development for a while and keeps its his...
Check if a Class Object is subclass of another Class Object in Java
...laying around with Java's reflection API and trying to handle some fields. Now I'm stuck with identifying the type of my fields. Strings are easy, just do myField.getType().equals(String.class) . The same applies for other non-derived classes. But how do I check derived classes? E.g. LinkedList a...
How to reshape data from long to wide format
...s this simply, with gather()/spread() being the terms for melt/cast.
Edit: Now, in 2019, tidyr v 1.0 has launched and set spread and gather on a deprecation path, preferring instead pivot_wider and pivot_longer, which you can find described in this answer. Read on if you want a brief glimpse into th...
Functional style of Java 8's Optional.ifPresent and if-not-Present?
...implementing consumer for better usage with other components.
by the way now its name is more descriptive it is actually Consumer>
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