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Setting PayPal return URL and making it auto return?
...return in your PayPal account, otherwise it will ignore the return field.
From the documentation (updated to reflect new layout Jan 2019):
Auto Return is turned off by default.
To turn on Auto Return:
Log in to your PayPal account at https://www.paypal.com or https://www.sandbox.paypa...
Why is using “for…in” for array iteration a bad idea?
...r (var i = 0; i < a.length; i++) {
// Iterate over numeric indexes from 0 to 5, as everyone expects.
console.log(a[i]);
}
/* Will display:
undefined
undefined
undefined
undefined
undefined
5
*/
can sometimes be totally different from the other:
v...
Check status of one port on remote host [closed]
...known ip:
nmap -A 192.168.0.5/32 -p 23
For example, look for open ports from 20 to 30 on host.example.com:
nc -z host.example.com 20-30
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Google Analytics - Failed to load resource: http://www.google-analytics.com/ga.js
...ly.
yagudaev suggests (read answers below) that in order to keep AdBlock from blocking Google Analytics, you need to edit the snippet provided and explicitly use https:// instead of the protocol-relative URL by default. This means changing
'//www.google-analytics.com/analytics.js'
into
'https...
Remove grid, background color, and top and right borders from ggplot2
...
Simplification from the above Andrew's answer leads to this key theme to generate the half border.
theme (panel.border = element_blank(),
axis.line = element_line(color='black'))
...
Comparing Java enum members: == or equals()?
...out the order of your arguments (which only applies to comparing constants from the left, as in Pascal's answer)? Do you like always checking that a value is not null before .equals()ing it? I know I don't.
– Matt Ball
Nov 17 '09 at 21:03
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When would you call java's thread.run() instead of thread.start()?
...urrently working with: I have a program that can either be run as a GUI or from the command line. In the GUI case, I want the object that does the heavy lifting to run on a separate thread and send updates to the gui. In the command line mode, I don't need that separate thread.
...
What's the difference between the Dependency Injection and Service Locator patterns?
...ss is given its dependencies. It neither knows, nor cares where they come from. One important result of this is that the DI example is much easier to unit test -- because you can pass it mock implementations of its dependent objects. You could combine the two -- and inject the service locator (or...
What is considered a good response time for a dynamic, personalized web application? [closed]
...includes dynamic content and personalization, what is a good response time from the server (so excluding network latency and browser rendering time)? I'm thinking about sites like Facebook, Amazon, MyYahoo, etc. A related question is what is a good response time for a backend service?
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Command to remove all npm modules globally?
...ere quickly by typing %appdata%/npm in either the explorer, run prompt, or from the start menu.
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