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Does JavaScript have the interface type (such as Java's 'interface')?
...xample duck typing method
var hasMethods = function(obj /*, method list as strings */){
var i = 1, methodName;
while((methodName = arguments[i++])){
if(typeof obj[methodName] != 'function') {
return false;
}
}
return true;
}
// in your code
if(hasMethods(...
dealloc in Swift
..., namely to remove an NSNotificationCenter notification. Implementing dealloc results in a Swift compiler error:
5 Answ...
A CORS POST request works from plain JavaScript, but why not with jQuery?
...to set jQuery.ajaxSetup({'beforeSend': function(xhr) {xhr.setRequestHeader(string, string)}}) and play with the different headers sent (an example for rails here: railscasts.com/episodes/136-jquery)
– Aleadam
Apr 9 '11 at 20:15
...
Find the min/max element of an Array in JavaScript
...ES7 or ES8 spec Array.max and Array.min. Unlike this version, they work on strings. Your future colleague tries to get the alphabetically-latest string in an array with the now-well-documented native .max() method, but mysteriously gets NaN. Hours later, she finds this code, runs a git blame, and cu...
What are best practices for using SmtpClient, SendAsync and Dispose under .NET 4.0
...end email asynchronously is as the following:
public async Task SendEmail(string toEmailAddress, string emailSubject, string emailMessage)
{
using (var message = new MailMessage())
{
message.To.Add(toEmailAddress);
message.Subject = emailSubject;
message.Body = emai...
In Java, what does NaN mean?
...the value being converted is something else, for example when converting a string that does not represent a number.
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HashSet vs LinkedHashSet
...n item
LinkedHashSet maintain the order of insertion item
Example
Set<String> set = ...;// using new HashSet<>() OR new LinkedHashSet<>()
set.add("2");
set.add("1");
set.add("ab");
for(String value : set){
System.out.println(value);
}
HashSet output
1
ab
2
LinkedHashSet...
How can I detect if this dictionary key exists in C#?
...if (entry.Street != null)
{
row["HomeStreet"] = entry.Street.ToString();
}
}
...with the inner conditional repeated as necessary for each key required. The TryGetValue is only done once per PhysicalAddressKey (Home, Work, etc).
...
CSS selector with period in ID
The HTML spec allows for periods (.) in an id:
2 Answers
2
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Does java have a int.tryparse that doesn't throw an exception for bad data? [duplicate]
C# has Int.TryParse: Int32.TryParse Method (String, Int32%)
3 Answers
3
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