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How Do I Convert an Integer to a String in Excel VBA?
...e compounding with another String variable or constant. Like this:
Sheet1.Range("A1").Value = "My favorite number is " & 7
"My favorite number is 7"
So, really, the only rare case is when you really want to store an integer value, into a variant or Cell value, when not also compounding w...
Encode html entities in javascript
...
You can use regex to replace any character in a given unicode range with its html entity equivalent. The code would look something like this:
var encodedStr = rawStr.replace(/[\u00A0-\u9999<>\&]/gim, function(i) {
return '&#'+i.charCodeAt(0)+';';
});
This code will r...
Crontab Day of the Week syntax
...l
Having two numbers 0 and 7 for Sunday can be useful for writing weekday ranges starting with 0 or ending with 7. So you can write ranges starting with Sunday or ending with it, like 0-2 or 5-7 for example (ranges must start with the lower number and must end with the higher). The abbreviations ca...
Seedable JavaScript random number generator
...ility just use Math.random() and build helper functions around it (eg. randRange(start, end)).
I'm not sure what RNG you're using, but it's best to know and document it so you're aware of its characteristics and limitations.
Like Starkii said, Mersenne Twister is a good PRNG, but it isn't easy to ...
Best architectural approaches for building iOS networking applications (REST clients)
... or build your own lightweight object mapping/persistence layer, based on raw SQLite or LevelDB. Also I advice you to familiarize yourself with the Domain Driven Design and CQRS.
At first, I think, we should create another layer for networking, because we don't want fat controllers or heavy, overwh...
What exceptions should be thrown for invalid or unexpected parameters in .NET?
...
I like to use: ArgumentException, ArgumentNullException, and ArgumentOutOfRangeException.
ArgumentException – Something is wrong with the argument.
ArgumentNullException – Argument is null.
ArgumentOutOfRangeException – I don’t use this one much, but a common use is indexing into a collec...
Getting a list of all subdirectories in the current directory
...der>"
RUNS = 1
def run_os_walk():
a = time.time_ns()
for i in range(RUNS):
fu = [x[0] for x in os.walk(directory)]
print(f"os.walk\t\t\ttook {(time.time_ns() - a) / 1000 / 1000 / RUNS:.0f} ms. Found dirs: {len(fu)}")
def run_glob():
a = time.time_ns()
for i in rang...
Append a NumPy array to a NumPy array
...andom numbers to a 10 X 10 matrix.
myNpArray = np.zeros([1, 10])
for x in range(1,11,1):
randomList = [list(np.random.randint(99, size=10))]
myNpArray = np.vstack((myNpArray, randomList))
myNpArray = myNpArray[1:]
Using np.zeros() an array is created with 1 x 10 zeros.
array([[0., 0., 0....
Redis: possible to expire an element in an array or sorted set?
...d use a timestamp as the score. It's then trivial to delete items by score range, which could be done periodically, or only on every write, with reads always ignoring the out of range elements, by reading only a range of scores.
More here: https://groups.google.com/forum/#!topic/redis-db/rXXMCLNkNS...
Is there a way to do repetitive tasks at intervals?
...xecution) and you do not want to use channels, it's possible to use native range function.
i.e.
package main
import "fmt"
import "time"
func main() {
go heartBeat()
time.Sleep(time.Second * 5)
}
func heartBeat() {
for range time.Tick(time.Second * 1) {
fmt.Println("Foo")
...