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super() fails with error: TypeError “argument 1 must be type, not classobj” when parent does not inh
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If class B is not available for you to edit, then you must edit class A to not try to use super(); class A must be made to work with an "old-style" class, and possibly the best way to do that would be to make class A be itsel...
Handling Touch Event in UILabel and hooking it up to an IBAction
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What if I have multiple labels? how might I differentiate which one was tapped?
– learner
Jul 25 '14 at 22:47
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How to submit a form using PhantomJS
...n-form");
var i;
for (i=0; i < arr.length; i++) {
if (arr[i].getAttribute('method') == "POST") {
arr[i].elements["email"].value="mylogin";
arr[i].elements["password"].value="mypassword";
return;
}
}
});
},
function() {
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Unique combination of all elements from two (or more) vectors
...trying to create a unique combination of all elements from two vectors of different size in R.
5 Answers
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How to do an INNER JOIN on multiple columns
...e airport code, but the flights table only contains the airport codes so if I want to search by city I have to join on the airports table.
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Add a space (“ ”) after an element using :after
...anonymous inline boxes.
And from The 'white-space' processing model,
If a space (U+0020) at the end of a line has 'white-space' set to
'normal', 'nowrap', or 'pre-line', it is also removed.
Solution
So if you don't want the space to be removed, set white-space to pre or pre-wrap.
h2 ...
Sort objects in an array alphabetically on one property of the array
... to shunt the work of managing sort logic and locale quirks to the system. If doing a case-insensitive sort is normal for the locale, as it is in english, this will be done for you: "Z" > 'a' // false "Z".localeCompare('a') // 1 If you wish to deviate from the locale's default, you can send alo...
Submit HTML form on self page
...L5 draft does not allow action="" (empty attribute). It is against the specification.
From this other Stack Overflow answer.
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In MySQL queries, why use join instead of where?
...s joins because the join conditions are not right next to the table names. If you have 6 tables being joined together, it is easy to miss one in the where clause. You will see this fixed all too often by using the distinct keyword. This is ahuge performance hit for the database. You can't get an acc...
RSpec: describe, context, feature, scenario?
describe , context , feature , scenario : What is the difference(s) among the four and when do I use each one?
3 Answers...