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How can I escape a double quote inside double quotes?
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Use a backslash:
echo "\"" # Prints one " character.
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Add new field to every document in a MongoDB collection
...bjectId("4e93037bbf6f1dd3a0a9541a"), "test" : "a" }
> item = db.foo.findOne()
{ "_id" : ObjectId("4e93037bbf6f1dd3a0a9541a"), "test" : "a" }
> db.foo.update({"_id" :ObjectId("4e93037bbf6f1dd3a0a9541a") },{$set : {"new_field":1}})
> db.foo.find()
{ "_id" : ObjectId("4e93037bbf6f1dd3a0a9541a"...
What exceptions should be thrown for invalid or unexpected parameters in .NET?
...e thrown for invalid or unexpected parameters in .NET? When would I choose one instead of another?
7 Answers
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How to create an exit message
Is there a one line function call that quits the program and displays a message? I know in Perl it's as simple as:
4 Answer...
Intellij idea cannot resolve anything in maven
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This worked for me as well! Does anyone know why this breaks resolution?
– dmi_
Feb 11 '16 at 19:05
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How to get the focused element with jQuery?
...focus');
// No jQuery:
elem === elem.ownerDocument.activeElement;
Which one should you use? quoting the jQuery docs:
As with other pseudo-class selectors (those that begin with a ":"), it is recommended to precede :focus with a tag name or some other selector; otherwise, the universal selecto...
Get first day of week in PHP?
Given a date MM-dd-yyyy format, can someone help me get the first day of the week?
38 Answers
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OPTION (RECOMPILE) is Always Faster; Why?
...your situation I would recommend rebuilding your statistics. This can be done by running the following:
EXEC sp_updatestats
And then recreating your execution plan. This will ensure that when your execution plan is created it will be using the latest information.
Adding OPTION(RECOMPILE) rebui...
How to declare global variables in Android?
...amework. Note that this will not work across processes (should your app be one of the rare ones that has multiple processes).
Something to note from the example above; suppose we had instead done something like:
class MyApp extends Application {
private String myState = /* complicated and slow ...
Get current URL of UIWebView
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Matt's version is much cleaner. I recommend everyone to use that one instead of this
You could try this:
NSString *currentURL = [webView stringByEvaluatingJavaScriptFromString:@"window.location"];
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