Since PHP 5.5 was implemented in the Generator language. It can be used inside a function from the keyword yield .
In the Manual , we have an example where one is compared to the function range(0, 1000000) (which theoretically...
I'm studying the use of generators in ECMAScript 6.0 "Harmony" .
I have already been able to understand its basic operation, such as declaration through the function* () { ... } syntax and the production of values through the yie...
In PHP we have the Iterators and the Generator .
Example Iterator:
$f = new FileSystemIterator(__DIR__);
foreach($f as $file) {
echo $file->getFilename();
}
Example Generator:
function sequence($start, $end) {...
As of PHP 5.5 we can use yield instead of return in functions and, with that, we create Generators .
The reasons for using yield can be seen here What are the advantages of using a Generator (yield) in PHP?
But...
Generating function:
def geraQuadrados(n):
for i in range(n):
yield i**2
for i in geraQuadrados(5):
print(i)
No generating function:
def novosQuadrados(n):
l = []
for i in range(n):
l.app...
Well, I've been trying to optimize my code and found generator expressions, but I do not understand anything about it.
For example:
for mCp in mWithoutNone:
for ctt in moradasCTT:
if mCp[3] == ctt[3]:
mWithCp4.append...
I'm new to codeigniter and I need to define my controller and model, so when calling the model inserir() , the controller takes the last ID of the generator of each table that wants to do the insert. Let me give you an example:
control...
What would be the best way to stop a generator? Example:
>>> def get_fruits():
fruits = ['Mamão', 'Abacate', 'Melão', 'Banana', 'Maçã', 'Uva']
for fruit in fruits:
yield fruit
>>> my_bag = []
&g...
I need when a new product is created it generates a number ex: 0001/2015 number / year_vigente and when change of year returns to zero.
I made a helper just to format the number in the views, but it does not solve the problem of automatic gen...