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Git submodule head 'reference is not a tree' error
...s commit that modified the submodule and then reseting the super-project's index to refer to a different submodule commit.
Inside, Out
If you already know which commit you want the submodule to use, cd to the submodule, check out the commit you want, then git add and git commit it back in the supe...
Removing nan values from an array
... everywhere that x is a valid number.
Lastly we use this logical array to index into the original array x, to retrieve just the non-NaN values.
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How do I load my script into the node.js REPL?
... enter the REPL even if stdin
node -e 'var client = require("./build/main/index.js"); console.log("Use `client` in repl")' -i
Then you can add to package.json scripts
"repl": "node -e 'var client = require(\"./build/main/index.js\"); console.log(\"Use `client` in repl\")' -i",
tested using nod...
How do I specify local .gem files in my Gemfile?
...tem:
Just put your .gem files in a local directory, then use "gem generate_index" to make it a Gem repository
mkdir repo
mkdir repo/gems
cp *.gem repo/gems
cd repo
gem generate_index
Finally point bundler to this location by adding the following line to your Gemfile
source "file://path/to/repo"
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How can I solve a connection pool problem between ASP.NET and SQL Server?
...me to time on our web site as well. The culprit in our case, is our stats/indexes getting out of date. This causes a previously fast running query to (eventually) become slow and time out.
Try updating statistics and/or rebuilding the indexes on the tables affected by the query and see if that he...
Compare DATETIME and DATE ignoring time portion
...th datefields have been typecast, meaning you'll be unable to leverage any indexes.
So, if there is a need to write a query that can benefit from an index on a date field, then the following (rather convoluted) approach is necessary.
The indexed datefield (call it DF1) must be untouched by any ki...
Change Placeholder Text using jQuery
..."selection");
var textbx = document.getElementById("textbox");
var indexe = sel.selectedIndex;
if(indexe == 0) {
$("#textbox").attr("placeholder", "age");
}
if(indexe == 1) {
$("#textbox").attr("placeholder", "name");
}
}
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Regex to test if string begins with http:// or https://
...s." (Duplicate characters are ignored.)
Try this:
^https?://
If you really want to use alternation, use this syntax instead:
^(http|https)://
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Git: Ignore tracked files
...
Sure.
git update-index --assume-unchanged [<file> ...]
To undo and start tracking again:
git update-index --no-assume-unchanged [<file> ...]
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Should one use < or
...ember when I first started learning Java. I hated the concept of a 0-based index because I've always used 1-based indexes. So I would always use the <= 6 variant (as shown in the question). To my own detriment, because it would confuse me more eventually on when the for loop actually exited. It's...