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How do you rename a MongoDB database?
...space (e.g.: dbName.collection) that describes every single collection and index includes the database name, so to rename a set of database files, every single namespace string would have to be rewritten. This impacts:
the .ns file
every single numbered file for the collection
the namesp...
How to make CSS3 rounded corners hide overflow in Chrome/Opera
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Add a z-index to your border-radius'd item, and it will mask the things inside of it.
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JavaScript before leaving the page
...ad = function(){
return 'Are you sure you want to leave?';
};
Or with jQuery:
$(window).bind('beforeunload', function(){
return 'Are you sure you want to leave?';
});
This will just ask the user if they want to leave the page or not, you cannot redirect them if they select to stay on the pa...
Convert pandas timezone-aware DateTimeIndex to naive timestamp, but in certain timezone
You can use the function tz_localize to make a Timestamp or DateTimeIndex timezone aware, but how can you do the opposite: how can you convert a timezone aware Timestamp to a naive one, while preserving its timezone?
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Best way to randomize an array with .NET
...ursive step) shuffle the first n-1 elements of the array
choose a random index, x, in the range [0..n-1]
swap the element at index n-1 with the element at index x
The iterative equivalent is to walk an iterator through the array, swapping with random elements as you go along, but notice tha...
What are the main performance differences between varchar and nvarchar SQL Server data types?
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What about index size, memory usage etc? I assume you always use int when you could use tinyint too "just in case"?
– gbn
Jul 9 '10 at 7:02
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Pass props to parent component in React.js
...) {
var children = this.state.childrenData.map(function(childData,childIndex) {
return <Child onClick={this.handleChildClick.bind(null,childData)} text={childData.childText}/>;
}.bind(this));
return <div>{children}</div>;
},
handleChildClick: function(child...
Titlecasing a string with exceptions
...oded hacks specifically to deal with odd cases, like “AT&T” and “Q&A”, both of which contain small words (at and a) which normally should be lowercase.
The first and last word of the title are always capitalized, so input such as “Nothing to be afraid of” will be turned into “N...
What is the syntax for an inner join in LINQ to SQL?
I'm writing a LINQ to SQL statement, and I'm after the standard syntax for a normal inner join with an ON clause in C#.
1...
Entity Framework: table without primary key
...nsert records ASAP. Having PK can be an issue when checking uniqueness and indexing happens. Also If your PK is IDENTITY so returning the generated value to the EF is another issue. using GUID instead? generation time and indexing/sorting is another issue!...SO IN some critical OLTP senarios(like Lo...