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Difference between Ctrl+Shift+F and Ctrl+I in Eclipse
...RL + SHIFT + F format all code that is format tabs/whitespaces and also divide code lines in a way that it is visible without horizontal scroll.
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How to create a directory using nerdtree
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled...
Rails - Validate Presence Of Association?
...od I can call to make sure this is true, or do I need to write a custom validation?
4 Answers
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xpath find if node exists
...ge, you should probably ask that as a new question at SO, but as a quick guide: html/body and not(html/body/node()) (i.e., just test if it exists and it does not contain any child nodes, or text nodes).
– Abel
Sep 6 '15 at 11:30
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Automatic creation date for Django model form objects?
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auto_now and auto_now_add are considered evil, so try to avoid them. This answer explains why and provides a better approach, overriding the save() method.
– gregoltsov
Jan 30 '14 at 13:15
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Convert Enumeration to a Set/List
Is there some one-liner bridge method to dump a given Enumeration to java.util.List or java.util.Set?
6 Answers
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Java Round up Any Number
...tln((int) Math.ceil(a / 100.0));
Outputs:
1
1.0
1.42
2.0
2
See http://ideone.com/yhT0l
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Android Studio - Where can I see callstack while debugging an android app?
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Thanks Nickolai, I didn't find "Threads" because I had closed it. I clicked on the icon on the right of the Tabs and I reopened it.
– ARLabs
Feb 9 '15 at 14:15
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WPF Command Line
... won't automatically instantiate your main window and show it.
Next, override the OnStartup method in your App class to perform the logic:
protected override void OnStartup(StartupEventArgs e)
{
base.OnStartup(e);
if ( /* test command-line params */ )
{
/* do stuff without a G...
Is generator.next() visible in Python 3?
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any idea why python 2 eschewed the dunder convention for these methods in the first place?
– Rick supports Monica
Mar 29 '16 at 14:47
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