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How to access parent Iframe from JavaScript
...imply a matter of iterating through the parent window's frames[] array and testing each frame's contentWindow against the window in which your code is running. Example:
var arrFrames = parent.document.getElementsByTagName("IFRAME");
for (var i = 0; i < arrFrames.length; i++) {
if (arrFrames[i]...
Do Google refresh tokens expire?
I have used the refresh token several times in just a short period for testing purposes, but I wonder whether Google refresh tokens ever expire? Can I use the same refresh token to get another access token again and again for a long period (a week or even months)?
...
How to monitor network calls made from iOS Simulator
...Github.
The docs contain a very helpful intro to loading a cert into your test device to view HTTPS traffic.
Not quite as GUI-tastic as Charles, but it does everything I need and its free and maintained.
Good stuff, and pretty straightforward if you've used some command line tools before.
UPDATE:...
What are the main performance differences between varchar and nvarchar SQL Server data types?
...
@Thomas Harlan A simple test demonstrates to me that there is no tangible difference between joining nvarchar to varchar vs converting nvarchar to varchar and joining to varchar. Unless of course you meant being consistent in column datatypes, not i...
Generate a heatmap in MatPlotLib using a scatter data set
...as np
import numpy.random
import matplotlib.pyplot as plt
# Generate some test data
x = np.random.randn(8873)
y = np.random.randn(8873)
heatmap, xedges, yedges = np.histogram2d(x, y, bins=50)
extent = [xedges[0], xedges[-1], yedges[0], yedges[-1]]
plt.clf()
plt.imshow(heatmap.T, extent=extent, or...
Convert special characters to HTML in Javascript
...);
el.innerText = el.textContent = s;
s = el.innerHTML;
return s;
}
Test run:
alert(HtmlEncode('&;\'><"'));
Output:
&amp;;'&gt;&lt;"
This method of escaping HTML is also used by the Prototype JS library though differently from the simplistic sample I have given.
Note: ...
How to determine an object's class?
...xception).
Possible ways summarized
Let's summarize the possible ways to test if an object obj is an instance of type C:
// Method #1
if (obj instanceof C)
;
// Method #2
if (C.class.isInstance(obj))
;
// Method #3
if (C.class.isAssignableFrom(obj.getClass()))
;
// Method #4
try {
...
How to check whether a string is a valid HTTP URL?
...
Try this to validate HTTP URLs (uriName is the URI you want to test):
Uri uriResult;
bool result = Uri.TryCreate(uriName, UriKind.Absolute, out uriResult)
&& uriResult.Scheme == Uri.UriSchemeHttp;
Or, if you want to accept both HTTP and HTTPS URLs as valid (per J0e3gan's ...
Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.3.2:compile (default-compile
...to local maven repository (could in your user's home directory under /.m2)
test – unit tests are run
package – compiled sources are packaged into archive (JAR by default)
The 1.6 under tag refers to JDK version.
We need to ensure that proper jdk version in our dev environment or change the val...
How to add 'ON DELETE CASCADE' in ALTER TABLE statement
...
Just tested in SqlServer, but possible you have to chance go with semi-colon as in postgres and SqlServer itself. But the remain core codes are sql standar. Test with semi-colons, I just changed it
– David Si...