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What does %5B and %5D in POST requests stand for?
... special characters in the url parameter values.
EDIT By the way as I was reading https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/encodeURI#Description, it just occurred to me why so many people make the same search. See the note on the bottom of the page:
Also note...
Change type of varchar field to integer: “cannot be cast automatically to type integer”
...olumn_name::integer'
If you are interested to find more about this topic read this article: https://kolosek.com/rails-change-database-column
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from list of integers, get number closest to a given value
...s, like {1: "a", 2: "b"}. This method takes O(n) time.
If the list is already sorted, or you could pay the price of sorting the array once only, use the bisection method illustrated in @Lauritz's answer which only takes O(log n) time (note however checking if a list is already sorted is O(n) and ...
Are Java static initializers thread safe?
...
Yes, Java static initializers are thread safe (use your first option).
However, if you want to ensure that the code is executed exactly once you need to make sure that the class is only loaded by a single class-loader. Static initialization is performed once p...
Thread Safety in Python's dictionary
...
Python's built-in structures are thread-safe for single operations, but it can sometimes be hard to see where a statement really becomes multiple operations.
Your code should be safe. Keep in mind: a lock here will add almost no overhead, and will give you p...
How to make an AJAX call without jQuery?
...tion loadXMLDoc() {
var xmlhttp = new XMLHttpRequest();
xmlhttp.onreadystatechange = function() {
if (xmlhttp.readyState == XMLHttpRequest.DONE) { // XMLHttpRequest.DONE == 4
if (xmlhttp.status == 200) {
document.getElementById("myDiv").innerHTML = xmlhtt...
Python: Continuing to next iteration in outer loop
...to me that the behavior of for-else is more complicated, more difficult to read, and probably more abused (if not an outright mistake) than named loops would be. I think I would have used a different keyword than else - perhaps something like resume would have been good? You break in the loop and th...
pandas three-way joining multiple dataframes on columns
...ething like this:
filenames = ['fn1', 'fn2', 'fn3', 'fn4',....]
dfs = [pd.read_csv(filename, index_col=index_col) for filename in filenames)]
dfs[0].join(dfs[1:])
With @zero's data, you could do this:
df1 = pd.DataFrame(np.array([
['a', 5, 9],
['b', 4, 61],
['c', 24, 9]]),
column...
CSS: How to position two elements on top of each other, without specifying a height?
...t answer, "mu is too short".
I was seeking the exact same thing, and after reading your post I found a solution that fitted my problem.
I was having two elements of the exact same size and wanted to stack them.
As each have same size, what I could do was to make
position: absolute;
top: 0px;
left:...
Cannot import the keyfile 'blah.pfx' - error 'The keyfile may be password protected'
...
I had the same issue and deleting the store and reading didn't work. I had to do the following.
Get a copy of OpenSSL. It is available for Windows. Or use a Linux box as they all pretty much all have it.
Run the following to export to a key file:
openssl pkcs12 -in cert...