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Python Progress Bar
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sys.stdout.flush()
sys.stdout.write("\b" * (toolbar_width+1)) # return to start of line, after '['
for i in xrange(toolbar_width):
time.sleep(0.1) # do real work here
# update the bar
sys.stdout.write("-")
sys.stdout.flush()
sys.stdout.write("]\n") # this ends the progress bar
N...
How to check if the user can go back in browser history or not
...'t indicate where in the history you are. Additionally, it doesn't always start at the same number. A browser not set to have a landing page, for example, starts at 0 while another browser that uses a landing page will start at 1.
Most of the time a link is added that calls:
history.back();
...
Using port number in Windows host file
... <--Link by netsh Utility
+--> localhost:8081
Actions
Started my server on localhost:8081
Added my "local DNS" in the hosts file as a new line
127.65.43.21 example.app
Any free address in the network 127.0.0.0/8 (127.x.x.x) can be used.
Note: I am assuming 127.65.43.21:8...
How to fix Error: listen EADDRINUSE while using nodejs?
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I run only this server. Befor I start the server, the xmlhttprequest works. After I start the server on the port 80, then the server also works perfectly. But if I do an xmlhttprequest after I started the server, then I get this error.
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How to get the first element of an array?
...rtant thing to know is that the two above are only an option if your array starts with a [0] index.
There are cases where the first element has been deleted, example with, delete yourArray[0] leaving your array with "holes". Now the element at [0] is simply undefined, but you want to get the first ...
How do you search an amazon s3 bucket?
... crazy simple:
open the bucket, select "none" on the right hand side, and start typing in the file name.
http://docs.aws.amazon.com/AmazonS3/latest/UG/ListingObjectsinaBucket.html
share
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improv...
Restoring MySQL database from physical files
...c location, then I copy those to corresponding location, exactly.
Step 7: Start your Mysql server. Everything come back and enjoy it.
That is it.
See more info at: https://biolinh.wordpress.com/2017/04/01/restoring-mysql-database-from-physical-files-debianubuntu/
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Declaring variables inside or outside of a loop
... public static void main(String[] args) throws Exception {
long start = System.currentTimeMillis();
double test;
for (double i = 0; i < 1000000000; i++) {
test = i;
}
long finish = System.currentTimeMillis();
System.out.println("Test1...
Best way to extract a subvector from a vector?
...ays, we use spans! So you would write:
#include <gsl/span>
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auto start_pos = 100000;
auto length = 1000;
auto span_of_myvec = gsl::make_span(myvec);
auto my_subspan = span_of_myvec.subspan(start_pos, length);
to get a span of 1000 elements of the same type as myvec's. Or a more terse form...
How to set Java environment path in Ubuntu
...e and then do the following:
Assuming you are using bash (if you are just starting off, i recommend bash over other shells) you can simply type in bash to start it.
Edit your ~/.bashrc file and add the paths as follows:
for eg. vi ~/.bashrc
insert following lines:
export JAVA_HOME=/usr/java/<...