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Heroku NodeJS http to https ssl forced redirect
...n up and running on heroku with express on node with https,. How do I identify the protocol to force a redirect to https with nodejs on heroku?
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Download large file in python with requests
... for chunk in r.iter_content(chunk_size=8192):
# If you have chunk encoded response uncomment if
# and set chunk_size parameter to None.
#if chunk:
f.write(chunk)
return local_filename
Note that the number of bytes retu...
How to format a duration in java? (e.g format H:MM:SS)
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If you're using a version of Java prior to 8... you can use Joda Time and PeriodFormatter. If you've really got a duration (i.e. an elapsed amount of time, with no reference to a calendar system) then you should probably be u...
PHP case-insensitive in_array function
...nd $ characters are required, unless partial matching is desired.) However if you actually want the matching entries returned, I like this solution.
– Darren Cook
Sep 14 '12 at 6:57
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How to extract the file name from URI returned from Intent.ACTION_GET_CONTENT?
...Activity):
public String getFileName(Uri uri) {
String result = null;
if (uri.getScheme().equals("content")) {
Cursor cursor = getContentResolver().query(uri, null, null, null, null);
try {
if (cursor != null && cursor.moveToFirst()) {
result = cursor.getString(cur...
In Typescript, How to check if a string is Numeric
...) // 1234
Number('9BX9') // NaN
You can also use the unary plus operator if you like shorthand:
+'1234' // 1234
+'9BX9' // NaN
Be careful when checking against NaN (the operator === and !== don't work as expected with NaN). Use:
isNaN(maybeNumber) // returns true if NaN, otherwise false
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How to convert UTF-8 byte[] to string?
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One of the beautiful features of UTF-8 is that a shorter sequence is never a subsequence of a longer sequence. So a null terminated UTF-8 string is simple.
– plugwash
Nov 24 '15 at 17:00
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Can Python test the membership of multiple values in a list?
I want to test if two or more values have membership on a list, but I'm getting an unexpected result:
10 Answers
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Why does Double.NaN==Double.NaN return false?
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NaN means "Not a Number".
Java Language Specification (JLS) Third Edition says:
An operation that overflows produces a signed infinity, an operation that underflows produces a denormalized value or a signed zero, and an operation that has no mathematically definite...
Check if application is installed - Android
...etch information about the package whose name you passed in. Failing that, if a NameNotFoundException was thrown, it means that no package with that name is installed, so we return false.
Note that we pass in a PackageManager instead of a Context, so that the method is slightly more flexibly usable...