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Is it possible to view RabbitMQ message contents directly from the command line?
...body looking like:
{"count":5,"requeue":true,"encoding":"auto","truncate":50000}
count controls the maximum number of messages to get. You may get fewer messages than this if the queue cannot immediately provide them.
requeue determines whether the messages will be removed from the queue. If req...
Rails 4 LIKE query - ActiveRecord adds quotes
...xpose you to SQL-injection (which is bad). I would suggest you use the SQL CONCAT() function to prepare the string like so:
"name LIKE CONCAT('%',?,'%') OR postal_code LIKE CONCAT('%',?,'%')", search, search)
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Add new row to dataframe, at specific row-index, not appended?
... 5 50 500 5000 50000 5e+05
insertRow2(existingDF, newrow, r) 549861.5 579579.0 789452 2512926 46994560 414790214
insertRow(existingDF, newrow, r) 895401.0 905318.5 1168201 2603926 39765358 392...
How to write to an existing excel file without overwriting data (using pandas)?
...iteration you append the dataframe to a list. In the end you only need to concat. If they follow the same structure will work as a charm. list_my_dfs = [df1, df2, ...] # List of your dataframes my_dfs_together = pd.concat(list_my_df ) # concat my dataframes in a single df
– ...
Add one row to pandas DataFrame
... It is worth noting however, that concat (and therefore append) makes a full copy of the data, and that constantly reusing this function can create a significant performance hit. If you need to use the operation over several datasets, use a list comprehension...
Detect if value is number in MySQL
...
This should work in most cases.
SELECT * FROM myTable WHERE concat('',col1 * 1) = col1
It doesn't work for non-standard numbers like
1e4
1.2e5
123. (trailing decimal)
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im...
JavaScript curry: what are the practical applications?
...guments);
return function() {
return __method.apply(this, args.concat([].slice.apply(null, arguments)));
}
}
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Portable way to get file size (in bytes) in shell?
...ays in my opinion with common Linux tools are:
$ stat -c %s /usr/bin/stat
50000
$ wc -c < /usr/bin/wc
36912
But I just don't want to be typing parameters or pipe the output just to get a file size, so I'm using my own bfsize.
...
Split array into chunks
...', {
value: function(chunkSize) {
var array = this;
return [].concat.apply([],
array.map(function(elem, i) {
return i % chunkSize ? [] : [array.slice(i, i + chunkSize)];
})
);
}
});
console.log(
[1, 2, 3, 4, 5, 6, 7].chunk_inefficient(3)
)
// [[1,...
How do you install an APK file in the Android emulator?
... people are by luck getting adb in their paths.
– Hal50000
May 1 '16 at 14:30
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