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Unable to create/open lock file: /data/mongod.lock errno:13 Permission denied
...use a mounted drive on ec2? I really do not understand. I attached a volume on ec2 formatted the drive as root and start as root and yet as root I cant access? I am running on ubuntu 12.04. No other mongo is running
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Search all the occurrences of a string in the entire project in Android Studio
...this IDEA has a nice "Find Usages" command. It can be found in the context menu, when the cursor is on some field, method, etc.
It's context-aware, and as far as I know, is the best way to find class, method or field usage.
Alternatively, you can use the
Edit > Find > Find in path…
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How to find index of all occurrences of element in array?
I am trying to find the index of all the instances of an element, say, "Nano", in a JavaScript array.
15 Answers
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How do you convert a time.struct_time object into a datetime object?
How do you convert a Python time.struct_time object into a datetime.datetime object?
3 Answers
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Detecting if an NSString contains…?
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Here's how I would do it:
NSString *someString = @"Here is my string";
NSRange isRange = [someString rangeOfString:@"is " options:NSCaseInsensitiveSearch];
if(isRange.location == 0) {
//found it...
} else {
NSRange isSpacedRange = [someString rangeOfString:...
How do you underline a text in Android XML?
...; </i> and <u> </u>.
<resources>
<string name="your_string_here">
This is an <u>underline</u>.
</string>
</resources>
If you want to underline something from code use:
TextView tv = (TextView) view.findViewById(R.id.tv);
Spann...
Apply CSS Style to child elements
..., td, caption {padding:40px 100px 40px 50px;}" applies a rule to all th elements which are contained by a div element with a class named test, in addition to all td elements and all caption elements.
It is not the same as "all td, th and caption elements which are contained by a div element with a ...
How to get a resource id with a known resource name?
I want to access a resource like a String or a Drawable by its name and not its int id.
10 Answers
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How can I split a string into segments of n characters?
As the title says, I've got a string and I want to split into segments of n characters.
12 Answers
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Copy to clipboard in Node.js?
...wn. You'll need separate bindings for windows.
edit: If you want to do something hacky, you could also use xclip:
var exec = require('child_process').exec;
var getClipboard = function(func) {
exec('/usr/bin/xclip -o -selection clipboard', function(err, stdout, stderr) {
if (err || stderr) ...