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Handling specific errors in JavaScript (think exceptions)
...
To create custom exceptions, you can inherit from the Error object:
function SpecificError () {
}
SpecificError.prototype = new Error();
// ...
try {
throw new SpecificError;
} catch (e) {
if (e instanceof SpecificError) {
/...
What is the difference between assert, expect and should in Chai?
... want to change Object.prototype.
The assert and expect interfaces support custom messages just about everywhere. For instance:
assert.isTrue(foo, "foo should be true");
expect(foo, "foo should be true").to.be.true;
The message "foo should be true" will be output together with the failed assertio...
What is a NullReferenceException, and how do I fix it?
...zed that you never initialized the field.
public class Form1
{
private Customer customer;
private void Form1_Load(object sender, EventArgs e)
{
Customer customer = new Customer();
customer.Name = "John";
}
private void Button_Click(object sender, EventA...
Running multiple AsyncTasks at the same time — not possible?
...ckground() yet.
This is tested/confirmed by me on 2.2. Suppose you have a custom AsyncTask that just sleeps a second in doInBackground(). AsyncTasks use a fixed size queue internally for storing delayed tasks. Queue size is 10 by default. If you start 15 your custom tasks in a row, then first 5 wil...
How can I detect the touch event of an UIImageView?
...
In practical terms, don't do that.
Instead add a button with Custom style (no button graphics unless you specify images) over the UIImageView. Then attach whatever methods you want called to that.
You can use that technique for many cases where you really want some area of the screen...
Animate change of view controllers without using navigation controller stack, subviews or modal cont
... be used in all projects." Considering a large percentage (around 40%?) of customers still use iOS 4, the goal is to provide something that works in iOS 4 and greater.
– TigerCoding
Nov 20 '11 at 23:23
...
How can I include a YAML file inside another?
...ython solution, but here is one using PyYAML.
PyYAML allows you to attach custom constructors (such as !include) to the YAML loader. I've included a root directory that can be set so that this solution supports relative and absolute file references.
Class-Based Solution
Here is a class-based solu...
@Column(s) not allowed on a @ManyToOne property
... LocalDate createdOn;
@JoinColumn
The @JoinColumn annotation is used to customize a Foreign Key column name, and it can only be used with an entity association.
So, in your case, because you are using a @ManyToOne association, you need to use @JoinColumn:
@ManyToOne(fetch=FetchTYpe.LAZY)
@JoinC...
how to implement a long click listener on a listview
... }
});
The XML for each item in the list (should you use a custom XML) must have android:longClickable="true" as well (or you can use the convenience method lv.setLongClickable(true);). This way you can have a list with only some items responding to longclick.
Hope this will help y...
Maven: best way of linking custom external JAR to my project?
It's my first couple of days learning Maven and I'm still struggling with the basics. I have an external .jar file (not available in the public repos) that I need to reference in my project and I'm trying to figure out what my best option is.
...