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Understanding Python super() with __init__() methods [duplicate]
...
super() lets you avoid referring to the base class explicitly, which can be nice. But the main advantage comes with multiple inheritance, where all sorts of fun stuff can happen. See the standard docs on super if you haven't already.
Note that ...
Rank function in MySQL
...ithout requiring a separate SET command.
Test case:
CREATE TABLE person (id int, first_name varchar(20), age int, gender char(1));
INSERT INTO person VALUES (1, 'Bob', 25, 'M');
INSERT INTO person VALUES (2, 'Jane', 20, 'F');
INSERT INTO person VALUES (3, 'Jack', 30, 'M');
INSERT INTO person VALU...
Acronyms in CamelCase [closed]
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Some guidelines Microsoft has written about camelCase are:
When using acronyms, use Pascal case or camel case for acronyms more than two characters long. For example, use HtmlButton or htmlButton. However, you should capitalize ...
How to center the content inside a linear layout?
I'm trying to center an ImageView inside a LinearLayout horizontally and vertically, but I just can't do it.
The main reason why I'm not using a RelativeLayout for that is because I need the layout_weight (my Activity consists of four columns that should be equally divided, and also respon...
How to create json by JavaScript for loop?
... this should work:
<script>
// var status = document.getElementsByID("uniqueID"); // this works too
var status = document.getElementsByName("status")[0];
var jsonArr = [];
for (var i = 0; i < status.options.length; i++) {
jsonArr.push({
id: status.options[i].text,
o...
Comments in Android Layout xml
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As other said, the comment in XML are like this
<!-- this is a comment -->
Notice that they can span on multiple lines
<!--
This is a comment
on multiple lines
-->
But they cannot be nested
<!-- This <!-...
How to check all checkboxes using jQuery?
... $('input:checkbox').not(this).prop('checked', this.checked);
});
Demo: Fiddle
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Add property to anonymous type after creation
...object to pass my Html Attributes to some helper methods.
If the consumer didn't add an ID attribute, I want to add it in my helper method.
...
How do I check whether a checkbox is checked in jQuery?
... your existing code, you could therefore do this:
if(document.getElementById('isAgeSelected').checked) {
$("#txtAge").show();
} else {
$("#txtAge").hide();
}
However, there's a much prettier way to do this, using toggle:
$('#isAgeSelected').click(function() {
$("#txtAge").toggle...
How do I pass data between Activities in Android application?
...
The easiest way to do this would be to pass the session id to the signout activity in the Intent you're using to start the activity:
Intent intent = new Intent(getBaseContext(), SignoutActivity.class);
intent.putExtra("EXTRA_SESSION_ID", sessionId);
startActivity(intent);
Acces...