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How do you performance test JavaScript code?
...retty fast code not being fast enough. Or that your request to your server API took 220ms. Or something else like that. The point remains that if you take a profiler out and go looking for work to do, you will find it, but it may not be the work your users need.
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How to instantiate a File object in JavaScript?
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According to the W3C File API specification, the File constructor requires 2 (or 3) parameters.
So to create a empty file do:
var f = new File([""], "filename");
The first argument is the data provided as an array of lines of text;
The second arg...
How to convert char to int?
...t i = (int)(c - '0');
which does substraction of the char value?
Re the API question (comments), perhaps an extension method?
public static class CharExtensions {
public static int ParseInt32(this char value) {
int i = (int)(value - '0');
if (i < 0 || i > 9) throw new A...
How to get the IP address of the docker host from inside a docker container
...l
In my docker-compose.yml file, I have this:
version: '3'
services:
api:
build: ./api
volumes:
- ./api:/usr/src/app:ro
ports:
- "8000"
environment:
- MONGO_SERVER
command: /usr/local/bin/gunicorn -c /usr/src/app/gunicorn_config.py -w 1 -b :8000 wsgi
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Why do you not use C for your web apps?
...b which is especially frustrating is to desperately search for the 'magic' API call that will do what you want to do.
Think about how to do 'pretty thousands' in:
C#
String.Format("{0:n}"...
Java
new DecimalFormat("0.00"); ...
PHP
number_format($amount, 2); ...
ANSI C
sprintf("%'.2f", am...
How to leave a message for a github.com user
... paste the next line into your browser (feel free to
bookmark it): https://api.github.com/users/xxxxxxx/events/public
Find the GitHub username for which you want the email. Replace the
xxxxxxx in the URL with the person's GitHub username. Hit Enter.
Press Ctrl+F and search for “email”.
As sug...
How to write to a file in Scala?
... corner stone traits are Input, Output and Seekable which provide the core API.
Other classes of importance are Resource, ReadChars and WriteChars.
File - File is a File (called Path) API that is based on a combination of Java 7 NIO filesystem and SBT PathFinder APIs.
Path and FileSystem are t...
Get first and last day of month using threeten, LocalDate
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The API was designed to support a solution that matches closely to business requirements
import static java.time.temporal.TemporalAdjusters.*;
LocalDate initial = LocalDate.of(2014, 2, 13);
LocalDate start = initial.with(firstD...
Argparse: Required arguments listed under “optional arguments”?
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Note: this answer breaks the exposed API, check answer by Bryan_D down below.
– lol
May 2 at 13:26
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Android - Emulator in landscape mode, screen does not rotate
... This solved the problem for me when creating an Android 3.0, API 11, Android Virtual Device.
– John Bentley
Jul 12 '14 at 5:28
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