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How can I merge two hashes without overwritten duplicate keys in Ruby?
...lts.merge(options)
Or, if you're using Rails you can do:
options.reverse_merge!(defaults)
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Javascript : Send JSON Object with Ajax?
...
With jQuery:
$.post("test.php", { json_string:JSON.stringify({name:"John", time:"2pm"}) });
Without jQuery:
var xmlhttp = new XMLHttpRequest(); // new HttpRequest instance
xmlhttp.open("POST", "/json-handler");
xmlhttp.setRequestHeader("Content-Type", "appl...
Send an Array with an HTTP Get
... single value.
foo[]=value1&foo[]=value2&foo[]=value3
$foo = $_GET["foo"]; // [value1, value2, value3]
echo is_array($foo); // true
In case you still use foo=value1&foo=value2&foo=value3, then it'll return only the first value.
$foo = $_GET["foo"]; // value1
echo is_array($fo...
How to get all properties values of a JavaScript Object (without knowing the keys)?
...nd val
}
Object.values shim
Finally, as noted in the comments and by teh_senaus in another answer, it may be worth using one of these as a shim. Don't worry, the following does not change the prototype, it just adds a method to Object (which is much less dangerous). Using fat-arrow functions, thi...
Bash if statement with multiple conditions throws an error
...d) and -o (for or) operations.
tldp.org/LDP/Bash-Beginners-Guide/html/sect_07_01.html
Update
Actually you could still use && and || with the -eq operation. So your script would be like this:
my_error_flag=1
my_error_flag_o=1
if [ $my_error_flag -eq 1 ] || [ $my_error_flag_o -eq 2 ] || (...
When to use IMG vs. CSS background-image?
...ertical centering problems - bring on Flexbox!
– Dean_Wilson
Nov 17 '14 at 2:18
3
@BinaryFunt - &...
What's the difference between Task.Start/Wait and Async/Await?
...ll update the label!
UpdateLabelToSayItsComplete();
}
public void Button_2_Click(object sender, EventArgs e)
{
Console.WriteLine("Button 2 Clicked");
}
private void DoSomethingThatTakesTime()
{
Thread.Sleep(10000);
}
...
How does Google's Page Speed lossless image compression work?
...lly interested in the technical details, check out the source code:
png_optimizer.cc
jpeg_optimizer.cc
webp_optimizer.cc
For PNG files, they use OptiPNG with some trial-and-error approach
// we use these four combinations because different images seem to benefit from
// different parameters...
Permission denied (publickey) when deploying heroku code. fatal: The remote end hung up unexpectedly
...
You have to upload your public key to Heroku:
heroku keys:add ~/.ssh/id_rsa.pub
If you don't have a public key, Heroku will prompt you to add one automatically which works seamlessly. Just use:
heroku keys:add
To clear all your previous keys do :
heroku keys:clear
To display all your ex...
How to find corresponding log files folder for a web site?
...sName) then
wscript.echo Ucase(ServiceType) & "/" & Web.Name & _
Space(17-(len(Ucase(ServiceType))+1+len(Web.Name))) & " " & _
ProcessWebSite(ServiceType, Web.name)
end if
next
Set IISOBj=Nothing
WScript.Echo ""
End function
Call ShowSites("w3svc", "IIsWebServer", "Web")
...