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When to favor ng-if vs. ng-show/ng-hide?
...e ng-show/ng-hide does not
Elements that are not in the DOM have less performance impact and your web app might appear to be faster when using ng-if compared to ng-show/ng-hide. In my experience, the difference is negligible. Animations are possible when using both ng-show/ng-hide and ng-if, with ...
How to reset / remove chrome's input highlighting / focus border? [duplicate]
... whether an element is focused, which can suck when you walk through all a form's elements using the Tab key - you should reflect somehow when an element is focused.
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Automatic popping up keyboard on start Activity
...herwise it assumes that it needs to give focus to the first control on the form? Oddly enough, I was getting the keyboard even if all the controls on my form were disabled. Fixed now. Thank you!
– crowmagnumb
Jul 31 '14 at 18:06
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Can I scroll a ScrollView programmatically in Android?
...full scroll to the top or the bottom.
A simple example: in a registration form, if the user tap the "Signup" button when a edit text of the form is not filled, you want to scroll to that specific edit text to tell the user that he must fill that field.
In that case, you can do something like that:...
What's an elegant way to conditionally add a class to an HTML element in a view?
...ur variable:
<div class="<%= 'ok' if @success %>">
A second form using the ternary ?: operator is useful if you want to choose between two classes:
<div class="<%= @success ? 'good' : 'bad' %>">
Finally, you can use Rail's record tag helpers such as div_for, which will ...
Calling JavaScript Function From CodeBehind
...order for MyFunction() to work, MyFunction() has to be defined before the form tags or inside of them, but NOT after the </form> ending tag (otherwise a Object expected error will occur)
– BornToCode
Aug 22 '13 at 14:53
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javascript check for not null
Below is a code snippet, where we retrieve a form value.
Before further processing check if the value is not null..
10 Answ...
Store images in a MongoDB database
...("./uploads/" + filename).pipe(writestream);
}
});
In your view:
<form action="/" method="post" enctype="multipart/form-data">
<input type="file" name="photos">
With this code you can add single as well as multiple images in MongoDB.
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What does the `forall` keyword in Haskell/GHC do?
...nderstand the existential notation in terms of its translation to the GADT form than on its own, but you are certainly free to think otherwise.
– dfeuer
Feb 8 '15 at 13:46
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How to use sed to replace only the first occurrence in a file?
...ion to the POSIX specification for sed that allows the following 2-address form: 0,/re/ (re represents an arbitrary regular expression here).
0,/re/ allows the regex to match on the very first line also. In other words: such an address will create a range from the 1st line up to and including the li...