大约有 42,000 项符合查询结果（耗时：0.0376秒） [XML]
Check if a string is null or empty in XSLT
...me == null || categoryName.equals(""))
For more details e.g., distinctly identifying null vs. empty, see johnvey's answer below and/or the XSLT 'fiddle' I've adapted from that answer, which includes the option in Michael Kay's comment as well as the sixth possible interpretation.
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Email validation using jQuery
I'm new to jQuery and was wondering how to use it to validate email addresses.
35 Answers
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Set color of TextView span in Android
...d to set the text of the TextView twice
TextView TV = (TextView)findViewById(R.id.mytextview01);
Spannable wordtoSpan = new SpannableString("I know just how to whisper, And I know just how to cry,I know just where to find the answers");
wordtoSpan.setSpan(new ForegroundColorSpan(Color.BLU...
Do SVG docs support custom data- attributes?
...red in XML attributes whose names start with data- such as <p data-myid="123456"> . Is this part of the SVG spec too?
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Android: checkbox listener
...hangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView,boolean isChecked) {
}
}
);
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impr...
Drawing a connecting line between two elements [closed]
... the Flowchart demo.
It is available in a free Community edition, and a paid Toolkit edition.
The Toolkit edition wraps the Community edition with a comprehensive data binding layer, as well as several UI widgets for building applications and integrations for popular libraries, and is commercia...
client secret in OAuth 2.0
... as a proxy.
For example there were some bugs in Facebook library for Android where it was leaking tokens to Logs, you can find out more about it here
http://attack-secure.com/all-your-facebook-access-tokens-are-belong-to-us
and here https://www.youtube.com/watch?v=twyL7Uxe6sk.
All in all be extra c...
creating list of objects in Javascript
...
var list = [
{ date: '12/1/2011', reading: 3, id: 20055 },
{ date: '13/1/2011', reading: 5, id: 20053 },
{ date: '14/1/2011', reading: 6, id: 45652 }
];
and then access it:
alert(list[1].date);
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How to implement the activity stream in a social network
.... Structure so that you can quickly grab a batch of activities by activity ID or by using a set of friend IDs with time constraints.
Publish the activity IDs to Redis whenever an activity record is created, adding the ID to an "activity stream" list for every user who is a friend/subscriber that sho...
android image button
...d whatever you want and set the icon as the src.
<ImageButton
android:id="@+id/ImageButton01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/album_icon"
android:background="@drawable/round_button" />
...