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Node.js/Express.js App Only Works on Port 3000
... was never resolved... You likely have a firewall in front of your machine blocking those ports, or iptables is set up to prevent the use of those ports.
Try running nmap -F localhost when you run your app (install nmap if you don't have it). If it appears that you're running the app on the correc...
When is JavaScript synchronous?
...s always synchronous and single-threaded. If you're executing a JavaScript block of code on a page then no other JavaScript on that page will currently be executed.
JavaScript is only asynchronous in the sense that it can make, for example, Ajax calls. The Ajax call will stop executing and other co...
Difference between SRC and HREF
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So why does google PageSpeed talk about blocking external CSS references? developers.google.com/speed/docs/insights/OptimizeCSSDelivery
– Freek
May 7 '14 at 13:46
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Is there some way to PUSH data from web server to browser?
.... The webserver at this point can:
Return the new photo, if there is one
Block the client for some seconds (30 in our setup) waiting for some event to ocurr and change the photograph. If no event was generated at that point, it returns the same photo, only to allow the connection to stay alive and...
How to indent a few lines in Markdown markup?
...xcept each line should start at the 6th column. I.e. I don't want the code block formatting rule to make this chunk of text look like code as I'll use other formatting like bold face, etc. How to do that in Markdown?
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How can I recall the argument of the previous bash command?
...(which is most key binding related stuff outside of bash): tiswww.cwru.edu/php/chet/readline/rltop.html#TOCDocumentation
– Chris
Aug 19 at 0:17
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Should I use s and s inside my s?
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The nav element communicates that we're dealing with a major navigation block
The list communicates that the links inside this navigation block form a list of items
At http://w3c.github.io/html/sections.html#the-nav-element you can see that a nav element could also contain prose.
So yes, havi...
Create a .csv file with values from a Python list
... If I am using this inside a for loop, should the entire with block be nested under the for loop? Or would it be more efficient to only have wr.writerow(my_list) inside the loop?
– crypdick
Jun 7 '17 at 23:05
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Get table column names in MySQL?
Is there a way to grab the columns name of a table in mysql?
using php
19 Answers
19
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Difference between Java Enumeration and Iterator
..."Enumerations are typically faster" ? since Enumeration has "synchronizing block of code inside the nextElement()" And We don't have Synchronization at Iterators which causes ConcurrentModificationException rit?? Do we call Iterators are typically faster and Enumerations are a little safer. ??
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