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Ant task to run an Ant target only if a file exists?
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200
Available and Condition
<target name="check-abc">
<available file="abc.txt" prop...
Run a callback only if an attribute has changed in Rails
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200
Rails 5.1+
class Page < ActiveRecord::Base
before_save :do_something, if: :will_save_cha...
Remove leading or trailing spaces in an entire column of data
... fit. If your largest cell
has 100 characters you can set the breakline on 200 or whatever you
want.
Finish the operation.
You can now delete the new column Excel has created.
The 'side-effect' is that Excel has removed all trailing spaces in the original column.
...
SparseArray vs HashMap
... = sparseArray.get(99); // "sheep"
String anotherAnimal = sparseArray.get(200); // null
You can use get(int key, E valueIfKeyNotFound) if you want to avoid getting null for missing keys.
Iterate over the items
You can use keyAt and valueAt some index to loop through the collection because the Spar...
Why doesn't requests.get() return? What is the default timeout that requests.get() uses?
...f result is not None:
content, status = task.result()
if status == 200:
print(content)
UPDATE
If you receive a deprecation warning about using conn_timeout and read_timeout, check near the bottom of THIS reference for how to use the ClientTimeout data structure. One simple way to ...
Simplest SOAP example
...lt;soapenv:Envelope ' +
'xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" ' +
'xmlns:api="http://127.0.0.1/Integrics/Enswitch/API" ' +
'xmlns:xsd="http://www.w3.org/2001/XMLSchema" ' +
'xmlns:soapenv="http://schema...
How do you use “
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200
<<- is most useful in conjunction with closures to maintain state. Here's a section fro...
How to get a file or blob from an object URL?
...xhr.responseType = 'blob';
xhr.onload = function(e) {
if (this.status == 200) {
var myBlob = this.response;
// myBlob is now the blob that the object URL pointed to.
}
};
xhr.send();
Update (2018): For situations where ES5 can safely be used, Joe has a simpler ES5-based answer below.
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Is there a built in function for string natural sort?
...
ClaudiuClaudiu
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Loadbalancing web sockets
...TCP/IP. We have tested Autobahn (a high-performance WebSocket server) with 200k active connections on a 2 core, 4GB RAM VM.
Also note that you can do L7 load-balancing on the HTTP path announced during the initial WebSocket handshake. In that case the load balancer has to maintain state (which sour...