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Turning live() into on() in jQuery
My application has dynamically added Dropdowns. The user can add as many as they need to.
5 Answers
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How to use Chrome's network debugger with redirects
The Chrome network debugger gives me a great view of all the HTTP resources loaded for a page. But it clears the list whenever a new top-level HTML page is loaded. This makes it very difficult to debug pages that automatically reload for one reason or another (running script or 300 responses).
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What database does Google use?
...le has successfully
provided a flexible, high-performance
solution for all of these Google
products.
Some features
fast and extremely large-scale DBMS
a sparse, distributed multi-dimensional sorted map, sharing characteristics of both row-oriented and column-oriented databases.
designed to...
Is an index needed for a primary key in SQLite?
...x be explicitly created for it as well? SQLite does not appear to automatically create an index for a primary key column, but perhaps it indexes it anyway, given its purpose? (I will be searching on that column all the time).
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Are there any SHA-256 javascript implementations that are generally considered trustworthy?
...er. I'm having trouble figuring out which SHA-256 implementation I can actually trust. I was expecting there to be some kind of authoritative script that everyone used, but I'm finding loads of different projects all with their own implementations.
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Dynamically Changing log4j log level
What are the different approaches for changing the log4j log level dynamically, so that I will not have to redeploy the application. Will the changes be permanent in those cases?
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Turning multi-line string into single comma-separated
... awk: invalid -v option :(
– Marsellus Wallace
Jun 15 '15 at 17:38
6
Add a space bet...
Go build: “Cannot find package” (even though GOPATH is set)
...It does not work because your foobar.go source file is not in a directory called foobar. go build and go install try to match directories, not source files.
Set $GOPATH to a valid directory, e.g. export GOPATH="$HOME/go"
Move foobar.go to $GOPATH/src/foobar/foobar.go and building should work just ...
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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PostgreSQL Crosstab Query
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Install the additional module tablefunc once per database, which provides the function crosstab(). Since Postgres 9.1 you can use CREATE EXTENSION for that:
CREATE EXTENSION IF NOT EXISTS tablefunc;
Improved test case
CREATE ...