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Access event to call preventdefault from custom function originating from onclick attribute of tag
...nction sayHi(e) {
e.preventDefault();
alert("hi");
}
<a href="http://google.co.uk" onclick="sayHi(event);">Click to say Hi</a>
Run it as is and notice that the link does no redirect to Google after the alert.
Then, change the event passed into the onclick handler to so...
Passing multiple variables in @RequestBody to a Spring MVC controller using Ajax
...ve the actual argument:
import java.io.IOException;
import javax.servlet.http.HttpServletRequest;
import org.apache.commons.io.IOUtils;
import org.springframework.core.MethodParameter;
import org.springframework.http.server.ServletServerHttpRequest;
import org.springframework.web.bind.support.Web...
How to calculate the bounding box for a given lat/lng location?
...de, according to the WGS-84 ellipsoid [m]
def WGS84EarthRadius(lat):
# http://en.wikipedia.org/wiki/Earth_radius
An = WGS84_a*WGS84_a * math.cos(lat)
Bn = WGS84_b*WGS84_b * math.sin(lat)
Ad = WGS84_a * math.cos(lat)
Bd = WGS84_b * math.sin(lat)
return math.sqrt( (An*An + Bn*B...
JSON: why are forward slashes escaped?
...ON serializer would even care where the JSON ends up. On a web page, in an HTTP request, whatever. Let the final renderer do additional encoding, if it needs it.
– Dan Ross
Apr 28 '16 at 5:11
...
Why do we need message brokers like RabbitMQ over a database like PostgreSQL?
...en scaling. For a good example, see:
(source: springsource.com)
and: http://blog.springsource.org/2011/04/01/routing-topologies-for-performance-and-scalability-with-rabbitmq/
Finally, in regards to redis, yes, it can be used as a message broker, and can do well. However, Rabbitmq has more mes...
How to get a time zone from a location using latitude and longitude coordinates?
...stions on StackOverflow about resolving a time zone from a location. This community wiki is an attempt at consolidating all of the valid responses.
...
How can I get my Twitter Bootstrap buttons to right align?
... attribute and let bootstrap arrange the buttons.
For Bootstrap 2.3, see: http://getbootstrap.com/2.3.2/components.html#misc > Helper classes > .pull-right.
For Bootstrap 3, see: https://getbootstrap.com/docs/3.3/css/#helper-classes > Helper classes.
For Bootstrap 4, see: https://getbo...
How to compare if two structs, slices or maps are equal?
... function (which performance wise would be better than using reflection):
http://play.golang.org/p/CPdfsYGNy_
m1 := map[string]int{
"a":1,
"b":2,
}
m2 := map[string]int{
"a":1,
"b":2,
}
fmt.Println(reflect.DeepEqual(m1, m2))
...
Disabling the fullscreen editing view for soft keyboard input in landscape?
...t;?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
>
<EditText
android:imeOptions="f...
How to override the copy/deepcopy operations for a Python object?
I understand the difference between copy vs. deepcopy in the copy module. I've used copy.copy and copy.deepcopy before successfully, but this is the first time I've actually gone about overloading the __copy__ and __deepcopy__ methods. I've already Googled around and looked through the ...