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Generating a random password in php
...cdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890';
$pass = array(); //remember to declare $pass as an array
$alphaLength = strlen($alphabet) - 1; //put the length -1 in cache
for ($i = 0; $i < 8; $i++) {
$n = rand(0, $alphaLength);
$pass[] = $alphabet[$n];
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How to remove elements from a generic list while iterating over it?
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For those coming from Java, C#'s List is like ArrayList in that insertion/removal is O(n) and retrieval via an index is O(1). This is not a traditional linked list. It seems a bit unfortunate C# uses the word "List" to describe this data structure since it brings to mind...
Is there any way to close a StreamWriter without closing its BaseStream?
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Memory stream has a ToArray property that can be used even when stream is closed.
To Array writes the stream contents to a byte array, regardless of the Position property.
You can create a new stream based on the stream you wrote in.
public Syste...
How to get Enum Value from index in Java?
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Note that will clone a copy of the values array each time, so if you are calling this in the inner loop of performance sensitive code you might want to make a static copy and use that.
– Christopher Barber
Oct 4 '13 at 0:11
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How do I read the contents of a Node.js stream into a string variable?
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Why not move the chunks array into the promise?
– Jenny O'Reilly
May 23 at 16:51
2
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Why should I care that Java doesn't have reified generics?
...ys be unsafe without reified generics:
List<String> myFriends = new ArrayList();
myFriends.add("Alice");
getSession().put("friends", myFriends);
// later, elsewhere
List<Friend> myFriends = (List<Friend>) getSession().get("friends");
myFriends.add(new Friend("Bob")); // works like...
Passing enum or object through an intent (the best solution)
I have an activity that when started needs access to two different ArrayLists. Both Lists are different Objects I have created myself.
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Fastest way to reset every value of std::vector to 0
...ine TEST_METHOD 1
const size_t TEST_ITERATIONS = 100000;
const size_t TEST_ARRAY_SIZE = 10000;
int main(int argc, char** argv) {
std::vector<int> v(TEST_ARRAY_SIZE, 0);
for(size_t i = 0; i < TEST_ITERATIONS; ++i) {
#if TEST_METHOD == 1
memset(&v[0], 0, v.size() * size...
Deleting lines from one file which are in another file
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For exclude files that aren't too huge, you can use AWK's associative arrays.
awk 'NR == FNR { list[tolower($0)]=1; next } { if (! list[tolower($0)]) print }' exclude-these.txt from-this.txt
The output will be in the same order as the "from-this.txt" file. The tolower() function makes it ca...
How do you get current active/default Environment profile programmatically in Spring?
... that takes the String[] from getActiveProfiles(), gets a stream from that array, then uses matchers to check for multiple profiles(Case-Insensitive) which returns a boolean if they exist.
//Check if Active profiles contains "local" or "test"
if(Arrays.stream(environment.getActiveProfiles()).anyMat...