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What happens if a finally block throws an exception?
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@HenkHolterman: Disk-full errors aren't very common on a directly-connected primary hard disk, but programs sometimes write files to removable or networked disks; problems can be much more common with those. If someone yanks out a USB stick before a ...
Solutions for INSERT OR UPDATE on SQL Server
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Solutions provided by @Beau Crawford & @Esteban show general idea but error-prone.
To avoid deadlocks and PK violations you can use something like this:
begin tran
if exists (select * from table with (updlock,serializable) where key = @key)
begin
update table set ...
where key = @key
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Should a function have only one return statement?
...evitably wind up with code that looks like this:
function()
{
HRESULT error = S_OK;
if(SUCCEEDED(Operation1()))
{
if(SUCCEEDED(Operation2()))
{
if(SUCCEEDED(Operation3()))
{
if(SUCCEEDED(Operation4()))
{
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IntelliJ 13 - Add Navigate Back/Forward to toolbar?
Jetbrains changed the toolbars in IntelliJ 13.
7 Answers
7
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How to quickly and conveniently disable all console.log statements in my code?
...se provide detail as to what doesn't work? Does the above line give you an error? If yes, what's the error message?
– SolutionYogi
Aug 1 '09 at 0:58
1
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There is already an open DataReader associated with this Command which must be closed first
I have this query and I get the error in this function:
18 Answers
18
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“Origin null is not allowed by Access-Control-Allow-Origin” error for request made by application ru
...nsole, I get the origin null is not allowed by Access-Control-Allow-Origin error.
– thandasoru
Apr 2 '12 at 6:08
3
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How to use getJSON, sending data with post method?
...data contains the JSON object
//textStatus contains the status: success, error, etc
}, "json");
In that call, dataToBeSent could be anything you want, although if are sending the contents of a an html form, you can use the serialize method to create the data for the POST from your form.
var dat...
Writing to an Excel spreadsheet
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I was assuming it used xlwt too, but getting an openpyxl error. For anyone else who gets confused by this - it's all in the filetype you want. The pandas (0.12) docs say "Files with a .xls extension will be written using xlwt and those with a .xlsx extension will be written using o...
jQuery .live() vs .on() method for adding a click event after loading dynamic html
I am using jQuery v.1.7.1 where the .live() method is apparently deprecated.
7 Answers
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