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What does an exclamation mark mean in the Swift language?
...wn as forced unwrapping of the optional’s value:
Example
let possibleString: String? = "An optional string."
print(possibleString!) // requires an exclamation mark to access its value
// prints "An optional string."
let assumedString: String! = "An implicitly unwrapped optional string."
print...
How to create a HTTP server in Android? [closed]
...ening,use NetworkInterface.getNetworkInterfaces(), this question may tell extra tricks.
Finally, here there is possibly the complete minimal Android server that is very short, simple and may be easier to understand than finished end user applications, recommended in other answers.
...
JSON Stringify changes time of date because of UTC
...
JSON uses the Date.prototype.toISOString function which does not represent local time -- it represents time in unmodified UTC -- if you look at your date output you can see you're at UTC+2 hours, which is why the JSON string changes by two hours, but if this ...
How to write a UTF-8 file with Java?
...(
new FileOutputStream("outfilename"), "UTF-8"));
try {
out.write(aString);
} finally {
out.close();
}
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How do I get the current date in JavaScript?
...ntaining the current date and time.
var today = new Date();
var dd = String(today.getDate()).padStart(2, '0');
var mm = String(today.getMonth() + 1).padStart(2, '0'); //January is 0!
var yyyy = today.getFullYear();
today = mm + '/' + dd + '/' + yyyy;
document.write(today);
This wi...
What is the equivalent of 'describe table' in SQL Server?
...lename is a variable in the example. The sp works both ways, with either a string or the 'plain' tablename (exec sp_help Employees or exec sp_help 'Employees')
– KekuSemau
Nov 7 '18 at 7:29
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Maven2: Best practice for Enterprise Project (EAR file)
... prompted me to make a selection by entering a number or entering a search string e.g.:
513: remote -> org.xwiki.commons:xwiki-commons-component-archetype
514: remote -> org.xwiki.rendering:xwiki-rendering-archetype-macro
515: remote -> org.zkoss:zk-archetype-component
516: remote -> or...
A simple explanation of Naive Bayes Classification
... & part two being the confusion surrounding Training set.
In general all of Machine Learning Algorithms need to be trained for supervised learning tasks like classification, prediction etc. or for unsupervised learning tasks like clustering.
During the training step, the algorithms are taught...
How to iterate over the keys and values with ng-repeat in AngularJS?
...;
self.toDoListItems = {};// []; //dont use square brackets if keys are string rather than numbers.
self.doListCounter = 0;
self.addToDoList = function() {
var newToDoItem = {};
newToDoItem.title = self.toDoEntry;
newToDoItem.completed = false;
var ...
How to read a .xlsx file using the pandas Library in iPython?
...xcel table into a pandas DataFrame
Parameters
----------
io : string, path object (pathlib.Path or py._path.local.LocalPath),
file-like object, pandas ExcelFile, or xlrd workbook.
The string could be a URL. Valid URL schemes include http, ftp, s3,
and file. For f...