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Why doesn't adding CORS headers to an OPTIONS route allow browsers to access my API?
...articles about how CORS works. First, I did this (code is written in CoffeeScript syntax):
32 Answers
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Why doesn't nodelist have forEach?
I was working on a short script to change <abbr> elements' inner text, but found that nodelist does not have a forEach method. I know that nodelist doesn't inherit from Array , but doesn't it seem like forEach would be a useful method to have? Is there a particular implementation i...
How do you echo a 4-digit Unicode character in Bash?
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Just put "☠" in your shell script. In the correct locale and on a Unicode-enabled console it'll print just fine:
$ echo ☠
☠
$
An ugly "workaround" would be to output the UTF-8 sequence, but that also depends on the encoding used:
$ echo -e '\xE...
Sign APK without putting keystore info in build.gradle
...an use the Keychain Access to store your passwords.
Then in your gradle scripts:
/* Get password from Mac OSX Keychain */
def getPassword(String currentUser, String keyChain) {
def stdout = new ByteArrayOutputStream()
def stderr = new ByteArrayOutputStream()
exec {
commandLin...
move_uploaded_file gives “failed to open stream: Permission denied” error
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You can also run this script to find out the Apache process owner:
<?php echo exec('whoami'); ?>
And then change the owner of the destination directory to what you've got. Use the command:
chown user destination_dir
And then use the com...
What's the difference between RANK() and DENSE_RANK() functions in oracle?
...s.
As for nulls, it depends on the ORDER BY clause. Here is a simple test script you can play with to see what happens:
with q as (
select 10 deptno, 'rrr' empname, 10000.00 sal from dual union all
select 11, 'nnn', 20000.00 from dual union all
select 11, 'mmm', 5000.00 from dual union all
select ...
How to reverse apply a stash?
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@Greg Bacon, hey, I've tried to go through the script that you outlined, but the patch failed when I ran git stash show -p | git apply -R -v with the message: Checking patch messages... error: while searching for: Hello, world Hello again error: patch failed: messages:1. ...
Combining node.js and Python
...concurrency as do node.js.
If you feel adventurous, learn clojure (clojurescript, clojure-py) and you'll get the same language that runs and interoperates with existing code on Java, JavaScript (node.js included), CLR and Python. And you get superb marshalling protocol by simply using clojure data ...
How to save a PNG image server-side, from a base64 data string
I'm using Nihilogic's "Canvas2Image" JavaScript tool to convert canvas drawings to PNG images.
What I need now is to turn those base64 strings that this tool generates, into actual PNG files on the server, using PHP.
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ImportError: Cannot import name X
...or a different reason...
from my_sub_module import my_function
The main script had Windows line endings. my_sub_module had UNIX line endings. Changing them to be the same fixed the problem. They also need to have the same character encoding.
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