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How does having a dynamic variable affect performance?
...l to Foo, one for the dynamic addition, and one for the dynamic conversion from dynamic to int. Each one has its own runtime analysis and its own cache of analysis results.
Make sense?
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window.close and self.close do not close the window in Chrome
...ntroduced a while ago, to stop various malicious exploits and annoyances.
From the latest working spec for window.close():
The close() method on Window objects should, if all the following conditions are met, close the browsing context A:
The corresponding browsing context A is script-c...
What happens to a declared, uninitialized variable in C? Does it have a value?
...in a debugger - but strictly speaking, the compiler is free to do anything from crashing to summoning demons through your nasal passages.
As for why it's undefined behavior instead of simply "undefined/arbitrary value", there are a number of CPU architectures that have additional flag bits in their ...
How to communicate between iframe and the parent site?
...ello') {
alert('It works!');
}
};
If you are posting message from iframe to parent window
window.top.postMessage('hello', '*')
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f...
Instance variable: self vs @
... Or more practically, a PersistentPerson class might lazily read that data from a persistent store, cache all its persistent data in a hash.
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Making an iframe responsive
...
I found a solution from from Dave Rupert / Chris Coyier. However, I wanted to make the scroll available so I came up with this:
// HTML
<div class="myIframe">
<iframe> </iframe>
</div>
// CSS
.myIframe {
...
How to set target hosts in Fabric file
...
Use roledefs
from fabric.api import env, run
env.roledefs = {
'test': ['localhost'],
'dev': ['user@dev.example.com'],
'staging': ['user@staging.example.com'],
'production': ['user@production.example.com']
}
def deploy()...
Adding up BigDecimals using Streams
...same, except that I have added a totalMapper variable, that has a function from Invoice to BigDecimal and returns the total price of that invoice.
Then I obtain a Stream<Invoice>, map it to a Stream<BigDecimal> and then reduce it to a BigDecimal.
Now, from an OOP design point I would a...
What does 'require: false' in Gemfile mean?
...:require => false these particular gems and explicitly require "thegem" from the rake task. This would then save memory in the main app processes and startup time etc. App performance, however, should not be affected even if you require these additional gems in every process.
...
How can I Remove .DS_Store files from a Git repository?
How can I remove those annoying Mac OS X .DS_Store files from a Git repository?
25 Answers
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