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What's an elegant way to conditionally add a class to an HTML element in a view?
...usually you should represent success with boolean true or a numeric record ID, and failure with boolean false or nil. This way you can just test your variable:
<div class="<%= 'ok' if @success %>">
A second form using the ternary ?: operator is useful if you want to choose between tw...
Drawing a line/path on Google Maps
... List<Overlay> mapOverlays;
private Projection projection;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
linearLayout = (LinearLayout) findViewById(R.id.zoomview);
mapView = (MapView) findView...
Django Forms: if not valid, show form with error message
I Django forms, it can check whether the form is valid:
7 Answers
7
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How to make an input type=button act like a hyperlink and redirect using a get request? [duplicate]
...
There are several different ways to do that -- first, simply put it inside a form that points to where you want it to go:
<form action="/my/link/location" method="get">
<input type="submit" value="Go to my link location"
name="Submit" id="frm1_submit" />
</...
Insert Data Into Temp Table with Query
...as t to the end.
Select * into #result from (SELECT * FROM #temp where [id] = @id) as t //<-- as t
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Safari 3rd party cookie iframe trick no longer working?
... party cookies in Safari was as follows: use some javascript to POST to a hidden iframe. It (used to) trick Safari into thinking that the user had interacted with the 3rd party content and so then allow cookies to be set.
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How to parse/format dates with LocalDateTime? (Java 8)
...e LocalDateTime class instead of on the instance? At least, that's what I did: I confused DateTime with dateTime in the example above.
– glaed
Aug 26 '16 at 15:10
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What do the plus and minus signs mean in Objective-C next to a method?
...lly Apple's code.
@interface NSArray : NSObject {
}
+ (NSArray *)array;
- (id)objectAtIndex:(NSUInteger)index;
@end
// somewhere else:
id myArray = [NSArray array]; // see how the message is sent to NSArray?
id obj = [myArray objectAtIndex:4]; // here the message is sent to myArray
// B...
AngularJS - $anchorScroll smooth/duration
...s encouraged.
To scroll to an element you attach a ng-click="gotoElement(ID)" to any element. I think an even better route would be to make this a directive.
Here's the working example on jsFiddle.
Update
There are now a number of third-party directives for accomplishing this.
https://github...
How to resize Image in Android?
...images in the gallery view to be full size. How do I resize images in Android?
10 Answers
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