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Resetting generator object in Python
I have a generator object returned by multiple yield. Preparation to call this generator is rather time-consuming operation. That is why I want to reuse the generator several times.
...
What is the fastest integer division supporting division by zero no matter what the result is?
... x, int y)
{
y += y == 0;
return x/y;
}
The compiler basically recognizes that it can use a condition flag of the test in the addition.
As per request the assembly:
.globl f
.type f, @function
f:
pushl %ebp
xorl %eax, %eax
movl %esp, %ebp
movl 12(...
How to show “Done” button on iPhone number pad
...rfect if there are other non-number pad text fields on the screen.
- (void)viewDidLoad
{
[super viewDidLoad];
UIToolbar* numberToolbar = [[UIToolbar alloc]initWithFrame:CGRectMake(0, 0, 320, 50)];
numberToolbar.barStyle = UIBarStyleBlackTranslucent;
numberToolbar.items = @[[[UIBa...
How do you validate a URL with a regular expression in Python?
...the result of parsing gives you a netloc or path you don't like, you could call that "invalid".
– S.Lott
Jun 29 '09 at 20:44
2
...
git working on two branches simultaneously
...
I know this is old, but could you provide some explanation please.
– dav_i
Jan 15 '13 at 10:23
...
Why use def main()? [duplicate]
...hink I still have something else to add.
Reasons to have that if statement calling main() (in no particular order):
Other languages (like C and Java) have a main() function that is called when the program is executed. Using this if, we can make Python behave like them, which feels more familiar for...
Difference between Convert.ToString() and .ToString()
...
Calling ToString() on an object presumes that the object is not null (since an object needs to exist to call an instance method on it). Convert.ToString(obj) doesn't need to presume the object is not null (as it is a static m...
How to set time delay in javascript
... setInterval (other)
Both these methods have same signature. They take a call back function and delay time as parameter.
setTimeout executes only once after the delay whereas setInterval keeps on calling the callback function after every delay milisecs.
both these methods returns an integer iden...
Declare multiple module.exports in Node.js
...method = function() {};
exports.otherMethod = function() {};
Then in the calling script:
const myModule = require('./myModule.js');
const method = myModule.method;
const otherMethod = myModule.otherMethod;
// OR:
const {method, otherMethod} = require('./myModule.js');
...
What is the actual use of Class.forName(“oracle.jdbc.driver.OracleDriver”) while connecting to a dat
...orName("java.lang.String");
Class.forName("com.example.some.jdbc.driver") calls show up in legacy code that uses JDBC because that is the legacy way of loading a JDBC driver.
From The Java Tutorial:
In previous versions of JDBC, to obtain a connection, you first had to initialize your JDBC driver ...