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'Operation is not valid due to the current state of the object' error during postback
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281
Somebody posted quite a few form fields to your page. The new default max introduced by the rec...
Creating an empty list in Python
...how you can test which piece of code is faster:
% python -mtimeit "l=[]"
10000000 loops, best of 3: 0.0711 usec per loop
% python -mtimeit "l=list()"
1000000 loops, best of 3: 0.297 usec per loop
However, in practice, this initialization is most likely an extremely small part of your program, ...
Disable pasting text into HTML form
...var pasted = (Math.abs(this.previousValue.length - this.value.length) > 1 && this.value != "");
if (pasted && !this.onpaste.apply(this, arguments)) {
this.value = this.previousValue;
}
this.previ...
Using Auto Layout in UITableView for dynamic cell layouts & variable row heights
...w are applicable regardless of which iOS versions you are developing for.
1. Set Up & Add Constraints
In your UITableViewCell subclass, add constraints so that the subviews of the cell have their edges pinned to the edges of the cell's contentView (most importantly to the top AND bottom edges)...
rails i18n - translating text with links inside
I'd like to i18n a text that looks like this:
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How to escape apostrophe (') in MySql?
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Insert into a MySQL table or update if exists
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What does it mean by select 1 from table?
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How do I create a custom iOS view class and instantiate multiple copies of it (in IB)?
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Well to answer conceptually, your timer should likely be a subclass of UIView instead of NSObj...