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How to delete all datastore in Google App Engine?
... login info, and if authorized, will make a Python shell for you. You need setup url handler for /remote_api in your app.yaml
fetch the entities you'd like to delete, the code looks something like:
from models import Entry
query = Entry.all(keys_only=True)
entries =query.fetch(1000)
...
How do I escape ampersands in batch files?
...ice
echo this ^^^& that | clip
If you put the string in a variable
set m=this ^& that
then
set m
will output
m=this & that
but the obvious
echo %m%
fails because, after Windows substitutes the variable, resulting in
echo this & that
it parses this as a new command a...
How to read from stdin line by line in Node
...es.txt');
//var readStream = process.stdin;
readStream.pause();
readStream.setEncoding('utf8');
var buffer=[];
readStream.on('data', (chunk) => {
const newlines=/[\r\n]+/;
var lines=chunk.split(newlines)
if(lines.length==1)
{
buffer.push(lines[0]);
return;
} ...
Cluster analysis in R: determine the optimal number of clusters
... the best number of clusters to do a k-means analysis. After plotting a subset of below data, how many clusters will be appropriate? How can I perform cluster dendro analysis?
...
The 'Access-Control-Allow-Origin' header contains multiple values
...
I added
config.EnableCors(new EnableCorsAttribute(Properties.Settings.Default.Cors, "", ""))
as well as
app.UseCors(CorsOptions.AllowAll);
on the server. This results in two header entries. Just use the latter one and it works.
...
How to ignore the certificate check when ssl
...
Since there is only one global ServicePointManager, setting ServicePointManager.ServerCertificateValidationCallback will yield the result that all subsequent requests will inherit this policy. Since it is a global "setting" it would be prefered to set it in the Application_Sta...
Pretty-Printing JSON with PHP
...
Don't forget to set response Content-Type to application/json if you want browser to display pretty-printed JSON nicely.
– Pijusn
Nov 27 '15 at 18:20
...
std::unique_ptr with an incomplete type won't compile
...
It seems if the default value for unique_ptr are set to {nullptr} in the header file of the class with c++11 style, a complete declaration is also needed for the above reason.
– feirainy
Apr 11 '19 at 5:16
...
What’s the difference between “Array()” and “[]” while declaring a JavaScript array?
...ined
;
Another difference is that when using new Array() you're able to set the size of the array, which affects the stack size. This can be useful if you're getting stack overflows (Performance of Array.push vs Array.unshift) which is what happens when the size of the array exceeds the size of t...
“Wrap with try…catch” in IntelliJ?
...lij let us to use our own keyboard shortcuts.
For That go to
File -> Setting -> Keymap in there you you can see a search box. Type the functionality you want (Surround with). Right click on Surround with, then select Remove Ctrl+Alt+T. Then again right click and select Add Keyboard Shortcu...