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How do I implement a callback in PHP?
How are callbacks written in PHP?
9 Answers
9
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Create a new object from type parameter in generic class
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Because the compiled JavaScript has all the type information erased, you can't use T to new up an object.
You can do this in a non-generic way by passing the type into the constructor.
class TestOne {
hi() {
alert('Hi');
}
}
class TestTwo {
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What is Linux’s native GUI API?
...heir own APIs to handle windows, events and other OS stuff. I have never really got a clear answer as to what Linux’s equivalent is?
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What is the best way to test for an empty string in Go?
... one that makes the code clear.
If I'm about to look at element x I typically write
len(s) > x, even for x == 0, but if I care about
"is it this specific string" I tend to write s == "".
It's reasonable to assume that a mature compiler will compile
len(s) == 0 and s == "" into the ...
Get Android Phone Model programmatically
...uld like to know if there is a way for reading the Phone Model programmatically in Android.
16 Answers
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Django South - table already exists
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Got it, thanks. It's actually migrate and not schemamigration, but your answer got me in the right direction.
– Steve
Jun 22 '10 at 7:17
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In Unix, how do you remove everything in the current directory and below it?
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Because you are specifically matching a named directory and are thus less likely to delete something that you don't intend to delete.
– tvanfosson
May 4 '09 at 16:27
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Cannot overwrite model once compiled Mongoose
...y have a schema defined, and then you are defining the schema again. Generally what you should do is instantiate the schema once, and then have a global object call it when it needs it.
For example:
user_model.js
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var userSchema...
.NET data structures: ArrayList, List, HashTable, Dictionary, SortedList, SortedDictionary — Speed,
...d Visual Basic books talk about them to a certain extent, but they never really go into any real detail.
13 Answers
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How to resize Twitter Bootstrap modal dynamically based on the content
... of data, such as Youtube videos, Vimeo videos, text, Imgur pictures, etc. All of them have different heights and widths. All I have found while searching the Internet is changing the size to only one parameter. It has to be same as the content in the popup.
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