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Can grep show only words that match search pattern?
...u want to display the name of the matched file or not. I'm not sure under what conditions it does and doesn't display, but I do know that when I used grep across a number of directories it did display the full file path for all matched files, whereas with -h it just displayed the matched words with...
Cookie overflow in rails application?
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You've got a 4kb limit on what you can store in a cookie, and when Rails converts your object into text for writing to the cookie its probably bigger than that limit.
Ruby on Rails ActionDispatch::Cookies::CookieOverflow error
That way this CookieOv...
The model backing the context has changed since the database was created
...
Here's some information from Scott Gu's Blog posted by Jeff on what's actually taking place:
For those who are seeing this exception:
"The model backing the 'Production' context has changed since the
database was created. Either manually delete/update the database, or
call D...
What is more efficient: Dictionary TryGetValue or ContainsKey+Item?
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@JohnGardner Yes, which is what I said - but if you do ContainsKey then get Item, you're doing that work 2x instead of 1x.
– Reed Copsey
Jun 2 '16 at 18:45
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Nested classes' scope?
...s global lookup instead of scoping the access to outer_var. (If you change what object the name Outer is bound to, then this code will use that object the next time it is executed.)
If you instead want all Inner objects to have a reference to an Outer because outer_var is really an instance attribu...
HTTP GET Request in Node.js Express
... yes - request module is simple but this is lower level showing what libraries like request module is doing. If you need lower level control or http requests (showing progress on large downloads etc...), this shows how it's done.
– bryanmac
Aug 24 '...
ReactJS - Does render get called any time “setState” is called?
...ed as little as needed - when the state changed.
There are two steps of what we may call "render":
Virtual DOM renders: when render method is called it returns a new virtual dom structure of the component. As I mentioned before, this render method is called always when you call setState(), beca...
Standard way to embed version into python package?
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You can see something about what version should say at packages.python.org/distribute/… That page is about distribute, but the meaning of the version number is becoming a de-facto standard.
– sienkiew
Aug 18 '10...
git difftool, open all diff files immediately, not in serial
... The script relies on the
diff.tool configuration option to
determine what diff viewer is used.
This script is compatible with all the
forms used to specify a range of
revisions to diff:
1) git diffall: shows diff between
working tree and staged changes
2) git diffall --cach...
In Eclipse, what can cause Package Explorer “red-x” error-icon when all Java sources compile without
... Right click in the Problems tab area and choose "Delete"--that's what I needed to hear!
– Gabriel Staples
Jan 17 '19 at 6:44
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