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How to secure MongoDB with username and password
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You need to start mongod with the --auth option after setting up the user.
From the MongoDB Site:
Run the database (mongod process) with the --auth option to enable
security. You must either have added a user to the admin db befor...
How can I set NODE_ENV=production on Windows?
...em in Control Panel (or by typing 'environment' into the search box in the start menu).
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How do I measure the execution time of JavaScript code with callbacks?
...t process.hrtime(); .
So, I basically put this at the top of my app.
var start = process.hrtime();
var elapsed_time = function(note){
var precision = 3; // 3 decimal places
var elapsed = process.hrtime(start)[1] / 1000000; // divide by a million to get nano to milli
console.log(proces...
How to start new activity on button click
In an Android application, how do you start a new activity (GUI) when a button in another activity is clicked, and how do you pass data between these two activities?
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Executing Batch File in C#
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static void ExecuteCommand(string command)
{
int exitCode;
ProcessStartInfo processInfo;
Process process;
processInfo = new ProcessStartInfo("cmd.exe", "/c " + command);
processInfo.CreateNoWindow = true;
processInfo.UseShellExecute = false;
// *** Redirect the output *...
Swift Beta performance: sorting arrays
...an in-place quicksort in Swift Beta:
func quicksort_swift(inout a:CInt[], start:Int, end:Int) {
if (end - start < 2){
return
}
var p = a[start + (end - start)/2]
var l = start
var r = end - 1
while (l <= r){
if (a[l] < p){
l += 1
...
Create array of all integers between two numbers, inclusive, in Javascript/jQuery [duplicate]
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In JavaScript ES6:
function range(start, end) {
return Array(end - start + 1).fill().map((_, idx) => start + idx)
}
var result = range(9, 18); // [9, 10, 11, 12, 13, 14, 15, 16, 17, 18]
console.log(result);
For completeness, here it is with an...
What is the difference between ManualResetEvent and AutoResetEvent in .NET?
...tEvent(false);
public void RunAll()
{
new Thread(Worker1).Start();
new Thread(Worker2).Start();
new Thread(Worker3).Start();
autoReset.Set();
Thread.Sleep(1000);
autoReset.Set();
Console.WriteLine("Main thread reached to end.");
}
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What to do with “Unexpected indent” in python?
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Python uses spacing at the start of the line to determine when code blocks start and end. Errors you can get are:
Unexpected indent. This line of code has more spaces at the start than the one before, but the one before is not the start of a subblock ...
Python list directory, subdirectory, and files
...eturn allFiles
for i in range(100): files = listFiles1("src") # warm up
start = time.time()
for i in range(100): files = listFiles1("src") # listdir
print("Time taken: %.2fs"%(time.time()-start)) # 0.28s
start = time.time()
for i in range(100): files = listFiles2("src") # listdir and join
print(...