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Preview an image before it is uploaded

...lementation of this. Works like a charm. @kxc you should make an ajax call and send input.files[0] as data, see jQuery's doc. – Sumi Straessle Mar 13 '17 at 9:07 ...
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What is the advantage of using REST instead of non-REST HTTP?

...dy really agrees on what REST is. The wikipedia page is heavy on buzzwords and light on explanation. The discussion page is worth a skim just to see how much people disagree on this. As far as I can tell however, REST means this: Instead of having randomly named setter and getter URLs and using GET...
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How to disable / enable dialog negative positive buttons?

...e look at the custom dialog below. I have an edittext field on the dialog and if the text field is empty I would like to disable the positiveButton . I can get a charListener for the text field but I am not sure how I am going to set the positivebutton to disable or enable from that listener? Wh...
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How To Set Text In An EditText

...he docs for EditText, you'll find a setText() method. It takes in a String and a TextView.BufferType. For example: EditText editText = (EditText)findViewById(R.id.edit_text); editText.setText("Google is your friend.", TextView.BufferType.EDITABLE); It also inherits TextView's setText(CharSequence...
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using data-* attribute with thymeleaf

... edited Feb 17 '17 at 8:01 Alexandru Severin 5,01399 gold badges3737 silver badges6060 bronze badges answered Jun 26 '14 at 14:04 ...
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Redis key naming conventions?

...directly querying for all keys which starts with user: there is a keys command for that. This command should be however used only for debugging purpose since it's O(N) because it's searching through all keys strored in database. More appropriate solution for this problem is to create dedicated key,...
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How to get UTF-8 working in Java webapps?

... JSP, no framework used) to support äöå etc. for regular Finnish text and Cyrillic alphabets like ЦжФ for special cases. ...
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Numbering rows within groups in a data frame

...g this approach, make sure that you are not getting conflicts between plyr and dplyr as explained in this post It can be avoided by explicitly calling dplyr::mutate(...) – EcologyTom Apr 10 '18 at 14:16 ...
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How to find out which view is focused?

I need to find out if any view is focused inside an Activity and what view it is. How to do this? 6 Answers ...
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Format number to always show 2 decimal places

... @Kooilnc: OP wants 1 to display as 1.00, and 1.341 to display as 1.34. – drudge May 26 '11 at 16:59 54 ...