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How to create a simple map using JavaScript/JQuery [duplicate]
...the .toString of the key Objects, when storing and retrieving the entries, convert the objects to a string which represents your understanding of uniqueness. E.g. map[toUniqueString(key1)] = 1
Sometimes, though, that is not possible. If you want to map data based on, for example File objects, ther...
Correctly determine if date string is a valid date in that format
... that this won't work with a British (d/m/Y) format as it will assume it's converting the American (m/d/Y). It will seem to work only if the day is lower than 12!
– Sylvester Saracevas
May 1 '18 at 12:58
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How do I remove a file from the FileList
...ed in many popular browsers (Chrome, Firefox, Safari);
First, you have to convert FileList to an Array
var newFileList = Array.from(event.target.files);
to delete the particular element use this
newFileList.splice(index,1);
...
How to export collection to CSV in MongoDB?
...e these headers for each document.
I've written a script to do just this. Converting MongoDB docs to csv irrespective of schema differences between individual documents.
https://github.com/surya-shodan/mongoexportcsv
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ASP.NET MVC 3 Razor - Adding class to EditorFor
...mlHelper class that has the following benefits:
The method automatically converts the DateTime into the ShortDateString needed by the jQuery calendar (jQuery will fail if the time is present).
By default, the helper will apply the required htmlAttributes to display a jQuery calendar, but they can ...
Get Enum from Description attribute [duplicate]
...ameof(description));
// Or return default(T);
}
}
Usage:
var panda = EnumEx.GetValueFromDescription<Animal>("Giant Panda");
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How to find if an array contains a specific string in JavaScript/jQuery? [duplicate]
...ermalink;. Using post.categories returns this error in console.log: "can't convert null to object".
– Cofey
May 24 '11 at 20:41
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pandas dataframe columns scaling with sklearn
...s a single feature or X.reshape(1, -1)
if it contains a single sample.
Converting your columns to numpy arrays should do the job (I prefer StandardScaler):
from sklearn.preprocessing import StandardScaler
scale = StandardScaler()
dfTest[['A','B','C']] = scale.fit_transform(dfTest[['A','B','C']...
“where 1=1” statement [duplicate]
... SQL Injection possible. The security issue would be to use $cond (without converting it to an integer) to specify the minimum age in the query, and to check if isset($_REQUEST['cond']) is actually true (otherwise using 1 = 1).
– Arseni Mourzenko
Nov 16 '11 at ...
How to write a simple database engine [closed]
...
assume you have a table, with some data, we would create a data format to convert this table into a binary file, by agreeing on the definition of a column delimiter and a row delimiter and make sure such pattern of delimiter is never used in your data itself. i.e. if you have selected <*> for...