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R - Markdown avoiding package loading messages
...clude=FALSE,}
knitr::opts_chunk$set(echo = TRUE, warning=FALSE)
#formating tables
library(xtable)
#data wrangling
library(dplyr)
#text processing
library(stringi)
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Store pictures as files or in the database for a web app?
...ed images (and all kinds of binary documents) as image columns in database tables.
The advantage of having files stored in the database is obviously that you do not end up with unreferenced files on the harddisk if a record is deleted, since synchronization between database (= meta data) and harddi...
How to search DOM elements using XPath or CSS selectors in Chrome Developer Tools?
...("iframe")[0].contentWindow.document.body; #to xpath query that iframe for table cells: $x("//td",myframe);
– Adolph Trudeau
May 18 '12 at 13:34
12
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Using PassportJS, how does one pass additional form fields to the local authentication strategy?
...have two options: one is email and the other is phonenumber. and the login table contains these two field along with password.
– Mathew John
Jan 11 '18 at 10:33
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How to output something in PowerShell
...hat to do with them. That's why you see Get-ChildItem's output coming in a table form, for example, and results with many properties (e.g. WMI) default to Format-List instead.
– Joey
Feb 2 '17 at 8:43
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How can I wrap or break long text/word in a fixed width span?
...
Here is a reference table in case you need white-space and wrapping: css-tricks.com/almanac/properties/w/whitespace
– Hritik
Jul 4 at 16:52
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Entity framework code-first null foreign key
...y { get; set; }
}
Because EF was creating 2 foreign keys in the database table: CountryId, and CountryId1, but the code above fixed that.
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python list in sql query as parameter
... = [1,5,8]
l = tuple(l)
params = {'l': l}
cursor.execute('SELECT * FROM table where id in %(l)s',params)
I hope this helped !!!
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Green Bars in Visual Studio 2010
...
They show lines that you have changed.
See here for more details and a table showing what the different colours mean:
+-----------+------------------------------+-------------------------+
| Marker | Different from | Different from file |
| colour | file saved on d...
Boolean.hashCode()
...mbers (non-primes), say 1000 and 2000. When inserting booleans into a hash table, true and false would go into bucket 1000 % N resp 2000 % N (where N is the number of buckets).
Now notice that
1000 % 8 same bucket as 2000 % 8
1000 % 10 same bucket as 2000 % 10
1000 % 20 same bucket as 2000 % 20...