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Convert nullable bool? to bool
...will represent. If null should be false, you can do this:
bool newBool = x.HasValue ? x.Value : false;
Or:
bool newBool = x.HasValue && x.Value;
Or:
bool newBool = x ?? false;
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Find the Smallest Integer Not in a List
... in O(N) time and O(1) additional space. Just go through the array sequentially and for every index write the value at the index to the index specified by value, recursively placing any value at that location to its place and throwing away values > N. Then go again through the array looking for t...
How to sort List of objects by some property
...> or implement Comparator<ActiveAlarm> in a separate class. Then call:
Collections.sort(list);
or
Collections.sort(list, comparator);
In general, it's a good idea to implement Comparable<T> if there's a single "natural" sort order... otherwise (if you happen to want to sort in a...
stop all instances of node.js server
...t have any other Node processes running, you can tell your machine to kill all processes named node.exe. That would look like this:
taskkill /im node.exe
And if the processes still persist, you can force the processes to terminate by adding the /f flag:
taskkill /f /im node.exe
If you need mor...
Rails 3 execute custom sql query without a model
...
Maybe try this:
ActiveRecord::Base.establish_connection(...)
ActiveRecord::Base.connection.execute(...)
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how to convert binary string to decimal?
... JS practicing could be
var bin2int = s => Array.prototype.reduce.call(s, (p,c) => p*2 + +c)
console.log(bin2int("101010"));
where +c coerces String type c to a Number type value for proper addition.
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Is floating point math broken?
...arger than the rational number 0.2 but that the closest double to 0.3 is smaller than the rational number 0.3. The sum of 0.1 and 0.2 winds up being larger than the rational number 0.3 and hence disagreeing with the constant in your code.
A fairly comprehensive treatment of floating-point arithmet...
How to load images dynamically (or lazily) when users scrolls them into view
...y are not fetched from the server straight away ). What is this technique called, how does it work and in how many browsers does it work. And is there a jQuery plugin that can achieve this behavior with minimum coding.
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How to add google chrome omnibox-search support for your site?
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Chrome usually handles this through user preferences. (via chrome://settings/searchEngines)
However, if you'd like to implement this specifically for your users, you need to add a OSD (Open Search Description) to your site.
Making us...
make iframe height dynamic based on content inside- JQUERY/Javascript
...nload="iframeLoaded()" ...
I had a situation a while ago where I additionally needed to call iframeLoaded from the IFRAME itself after a form-submission occurred within. You can accomplish that by doing the following within the IFRAME's content scripts:
parent.iframeLoaded();
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