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What does the variable $this mean in PHP?
... //member method
//Assign data to member variable from inside the member method
$this->my_member_variable = "whatever";
//Get data from member variable from inside the member method.
print $this->my_member_variable;
}
}
$this is reference...
How to serve static files in Flask
...l be able to do it more efficiently than Flask.
However, you can use send_from_directory to send files from a directory, which can be pretty convenient in some situations:
from flask import Flask, request, send_from_directory
# set the project root directory as the static folder, you can set othe...
Measuring the distance between two coordinates in PHP
...etween two points, with
* the Haversine formula.
* @param float $latitudeFrom Latitude of start point in [deg decimal]
* @param float $longitudeFrom Longitude of start point in [deg decimal]
* @param float $latitudeTo Latitude of target point in [deg decimal]
* @param float $longitudeTo Longitu...
Stop jQuery .load response from being cached
...when making the request. The other place to handle the cache settings are from the server or web app by setting various HTTP response headers, like Expires, Pragma, etc...
– Bryan Rehbein
Mar 15 '10 at 14:35
...
npm install errors with Error: ENOENT, chmod
...nstall an npm module I just published. Every time I try to install, either from npm or the folder, I get this error.
29 Ans...
HashMap with multiple values under the same key
...dd(new Person("Bob Jones"));
peopleByForename.put("Bob", people);
// read from it
List<Person> bobs = peopleByForename["Bob"];
Person bob1 = bobs[0];
Person bob2 = bobs[1];
The disadvantage with this approach is that the list is not bound to exactly two values.
2. Using wrapper class
// d...
.prop() vs .attr()
... a little about it, since jQuery is no longer trying so hard to shield you from this stuff. For the authoritative but somewhat dry word on the subject, there's the specs: DOM4, HTML DOM, DOM Level 2, DOM Level 3. Mozilla's DOM documentation is valid for most modern browsers and is easier to read tha...
Xcode suddenly stopped running project on hardware: “Could not launch xxx.app: .. No such file..” [c
...s stopped being able to run my app, it started directly after I deleted it from the device and attempted to re-install by rerunning it in Xcode (something I've done hundreds of times before).
...
Using curl POST with variables defined in bash script functions
...ite a function that generates the post data of your script. This saves you from all sort of headaches concerning shell quoting and makes it easier to read an maintain the script than feeding the post data on curl's invocation line as in your attempt:
generate_post_data()
{
cat <<EOF
{
"ac...
How do I get the web page contents from a WebView?
...in this post on lexandera.com. The code below is basically a cut-and-paste from the site. It seems to do the trick.
final Context myApp = this;
/* An instance of this class will be registered as a JavaScript interface */
class MyJavaScriptInterface
{
@JavascriptInterface
@SuppressWarnings(...