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How to capture no file for fs.readFileSync()?
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Basically, fs.readFileSync throws an error when a file is not found. This error is from the Error prototype and thrown using throw, hence the only way to catch is with a try / catch block:
var fileContents;
try {
fileContents =...
Amazon Interview Question: Design an OO parking lot [closed]
...s.
ParkingSpace has an Entrance.
Entrance has a location or more specifically, distance from Entrance.
ParkingLotSign is a class.
ParkingLot has a ParkingLotSign.
ParkingLot has a finite number of ParkingSpaces.
HandicappedParkingSpace is a subclass of ParkingSpace.
RegularParkingSpace is a s...
How to handle click event in Button Column in Datagridview?
... a single button per grid, you can jump right off to the races.
Putting it all together:
C#:
private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)
{
var senderGrid = (DataGridView)sender;
if (senderGrid.Columns[e.ColumnIndex] is DataGridViewButtonColumn &am...
iOS app error - Can't add self as subview
...ControllerDelegate protocol.
This includes the following method, which is called after the animation is complete:
navigationController:didShowViewController:animated:
Basically you want to move some code as needed into this method to ensure that no other actions that could cause a change to the N...
Is there a way to programmatically scroll a scroll view to a specific edit text?
...way to scroll to an EditText object (or any other view object) programmatically?
22 Answers
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What generates the “text file busy” message in Unix?
...table while it was running.
For example, I was building a make workalike called rmk, and after a while it was self-maintaining. I would run the development version and have it build a new version. To get it to work, it was necessary to use the workaround:
gcc -g -Wall -o rmk1 main.o -L. -lrmk -L...
Which websocket library to use with Node.js? [closed]
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Getting the ball rolling with this community wiki answer. Feel free to edit me with your improvements.
ws
WebSocket server and client for node.js. One of the fastest libraries if not the fastest one.
websocket-node
WebSocket server and ...
How to read contacts on Android 2.0
I'm working on Android 2.0 and am trying to receive a list of all contacts.
9 Answers
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best way to get the key of a key/value javascript object
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If you want to get all keys, ECMAScript 5 introduced Object.keys. This is only supported by newer browsers but the MDC documentation provides an alternative implementation (which also uses for...in btw):
if(!Object.keys) Object.keys = function...
Eclipse - no Java (JRE) / (JDK) … no virtual machine
... (the first one referenced by your PATH)
Three things to remember:
"Installing" a JRE or a JDK can be as simple as unzipping or copying it from another computer: there is no special installation steps, and you can have as many different JVM versions (1.4, 5.0, 6.0...) as you want, "installed" (co...