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What do hjust and vjust do when making a plot using ggplot?
Every time I make a plot using ggplot, I spend a little while trying different values for hjust and vjust in a line like
2...
Validate uniqueness of multiple columns
...ase to insert the same record in table;
each process in parallel validates if there is a record with the same n fields;
validation for each request is passed successfully, and each process creates a record in the table with the same data.
To avoid this kind of behaviour, one should add a unique co...
What is the difference between buffer and cache memory in Linux?
To me it's not clear what's the difference between the two Linux memory concepts : buffer and cache . I've read through this post and it seems to me that the difference between them is the expiration policy:
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How to change the decimal separator of DecimalFormat from comma to dot/point?
...e separator either by setting a locale or using the DecimalFormatSymbols.
If you want the grouping separator to be a point, you can use an european locale:
NumberFormat nf = NumberFormat.getNumberInstance(Locale.GERMAN);
DecimalFormat df = (DecimalFormat)nf;
Alternatively you can use the Decimal...
Disable JavaScript error in WebBrowser control
...o disables other windows.. such as the NTLM login window or the client certificate accept window. The below will suppress only javascript errors.
// Hides script errors without hiding other dialog boxes.
private void SuppressScriptErrorsOnly(WebBrowser browser)
{
// Ensure that ScriptErrorsSu...
PostgreSQL: Can you create an index in the CREATE TABLE definition?
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There doesn't seem to be any way of specifying an index in the CREATE TABLE syntax. PostgreSQL does however create an index for unique constraints and primary keys by default, as described in this note:
PostgreSQL automatically creates an index for each unique ...
How to copy from current position to the end of line in vi
... to the end of the line with y$ and paste with p.
To copy/paste between different instances, you can use the system clipboard by selecting the * register, so the commands become "*y$ for copying and "*p for pasting.
$ move-to-linebreak
$
y$ yank-to-linebreak
y,$
"*y$ select clipboard-register...
Python Requests library redirect new url
...URL, which can be found in response.url.
response = requests.get(someurl)
if response.history:
print("Request was redirected")
for resp in response.history:
print(resp.status_code, resp.url)
print("Final destination:")
print(response.status_code, response.url)
else:
prin...
Find and replace string values in list
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What if one of the items is a float/integer?
– Patriots299
Dec 31 '18 at 20:38
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Where is nodejs log file?
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If you use docker in your dev you can do this in another shell:
docker attach running_node_app_container_name
That will show you STDOUT and STDERR.
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