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What Does This Mean in PHP -> or => [duplicate]
...type into a corresponding index of an array. The index can be associative (string based) or numeric.
$myArray = array(
0 => 'Big',
1 => 'Small',
2 => 'Up',
3 => 'Down'
);
The object operator, ->, is used in object scope to access methods and properties of an object....
Get total size of file in bytes [duplicate]
...
public static void main(String[] args) {
try {
File file = new File("test.txt");
System.out.println(file.length());
} catch (Exception e) {
}
}
...
Django dynamic model fields
... to end up storing thousands of items in one field. It also only supports strings for values.
#app/models.py
from django.contrib.postgres.fields import HStoreField
class Something(models.Model):
name = models.CharField(max_length=32)
data = models.HStoreField(db_index=True)
In Django's s...
Java inner class and static nested class
...any other object to the static field, a, as in: class B { static void main(string s) {A.a = new A()}} (A & B in same package) This doesn't make A a static class. The phrase "static context," in the reference cited in the thread you linked to, is incredibly vague. In fact, this was noted in many ...
Load data from txt with pandas
I am loading a txt file containig a mix of float and string data. I want to store them in an array where I can access each element. Now I am just doing
...
How to explain callbacks in plain english? How are they different from calling one function from ano
...a function, but does not know how to print output. All it can do is make a string. When it tries to figure out what to do with the string, it sees a blank line. But, the programmer gave you the blank to write your callback in!
In this example, you do not use a pencil to fill in a blank on a sheet ...
Remove Trailing Spaces and Update in Columns in SQL Server
...('Amit Tech Corp '))
LTRIM - removes any leading spaces from left side of string
RTRIM - removes any spaces from right
Ex:
update table set CompanyName = LTRIM(RTRIM(CompanyName))
share
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impr...
What is the difference between conversion specifiers %i and %d in formatted IO functions (*printf /
...
There's a difference when used in scanf() format string as the accepted answer says.
– J...S
Feb 16 '18 at 10:32
add a comment
| ...
Select distinct using linq [duplicate]
...he ID:
public class LinqTest
{
public int id { get; set; }
public string value { get; set; }
public override bool Equals(object obj)
{
LinqTest obj2 = obj as LinqTest;
if (obj2 == null) return false;
return id == obj2.id;
}
public override int GetHa...
Rename Files and Directories (Add Prefix)
...
rename '' <prefix> *
This finds the first occurrence of the empty string (which is found immediately) and then replaces that occurrence with your prefix, then glues on the rest of the file name to the end of that. Done.
For suffixes, you need to use the perl version or use find.
...