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Change column type from string to float in Pandas
...g to float values
0 8.0
1 6.0
2 7.5
3 3.0
4 0.9
dtype: float64
As you can see, a new Series is returned. Remember to assign this output to a variable or column name to continue using it:
# convert Series
my_series = pd.to_numeric(my_series)
# convert column "a" of a DataFrame
df["a"...
using lodash .groupBy. how to add your own keys for grouped output?
...
}];
console.log(
_.chain(data)
// Group the elements of Array based on `color` property
.groupBy("color")
// `key` is group's name (color), `value` is the array of objects
.map((value, key) => ({ color: key, users: value }))
.value()
);
<script src="https://c...
What column type/length should I use for storing a Bcrypt hashed password in a Database?
I want to store a hashed password (using BCrypt) in a database. What would be a good type for this, and which would be the correct length? Are passwords hashed with BCrypt always of same length?
...
Check if a string is a date value
... is how I solved this problem in an app I'm working on right now:
updated based on feedback from krillgar:
var isDate = function(date) {
return (new Date(date) !== "Invalid Date") && !isNaN(new Date(date));
}
...
Convert XML to JSON (and back) using Javascript
... as string to JSON
X2JS.json2xml_str - Convert JSON to XML string
Online Demo on http://jsfiddle.net/abdmob/gkxucxrj/1/
var x2js = new X2JS();
function convertXml2JSon() {
$("#jsonArea").val(JSON.stringify(x2js.xml_str2json($("#xmlArea").val())));
}
function convertJSon2XML() {
$("#xmlAre...
Can you make just part of a regex case-insensitive?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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...
WiX tricks and tips
... Installed OR IIS_MAJOR_VERSION
</Condition>
Checking if IIS 6 Metabase Compatibility is installed on Vista+:
<Property Id="IIS_METABASE_COMPAT">
<RegistrySearch Id="CheckIISMetabase" Root="HKLM" Key="SOFTWARE\Microsoft\InetStp\Components" Name="ADSICompatibility" Type="raw" /&...
How to get current timestamp in milliseconds since 1970 just the way Java gets
...e <chrono>
#include <iostream>
int main() {
unsigned __int64 now = std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now().time_since_epoch()).count();
std::cout << now << std::endl;
return 0;
}
...
What is [Serializable] and when should I use it?
...nt this with JsonObject / JsonProperty attributes.
– Base
Aug 23 '19 at 6:23
A supporting answer to a similiar questio...
Set selected option of select box
...
This definitely should work. Here's a demo. Make sure you have placed your code into a $(document).ready:
$(function() {
$("#gate").val('gateway_2');
});
share
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