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Trust Store vs Key Store - creating with keytool

I understand that the keystore would usually hold private/public keys and the trust store only public keys (and represents the list o<em>fem> trusted parties you intend to communicate with). Well, that's my <em>fem>irst assumption, so i<em>fem> that's not correct, I probably haven't started very well... ...
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How to check whether an array is empty using PHP?

players will either be empty or a comma separated list (or a single value). What is the easiest way to check i<em>fem> it's empty? I'm assuming I can do so as soon as I <em>fem>etch the $gameresult array into $gamerow ? In this case it would probably be more e<em>fem><em>fem>icient to skip exploding the $playerlist i<em>fem> it...
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What is the di<em>fem><em>fem>erence between -viewWillAppear: and -viewDidAppear:?

What is the di<em>fem><em>fem>erence between -[UIViewController viewWillAppear:] and -[UIViewController viewDidAppear:] ? 12 Answers ...
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SparseArray vs HashMap

I can think o<em>fem> several reasons why HashMap s with integer keys are much better than SparseArray s: 7 Answers ...
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How to check i<em>fem> an app is installed <em>fem>rom a web-page on an iPhone?

I want to create a web-page, a page that will redirect an iPhone to the app-store i<em>fem> the iPhone does not have the application installed, but i<em>fem> the iPhone has the app installed I want it to open the application. ...
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Expansion o<em>fem> variables inside single quotes in a command in Bash

I want to run a command <em>fem>rom a bash script which has single quotes and some other commands inside the single quotes and a variable. ...
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What is the di<em>fem><em>fem>erence between and ?

What is the di<em>fem><em>fem>erence between &lt;section&gt; and &lt;div&gt; in HTML ? Aren't we de<em>fem>ining sections in both cases? ...
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Primary key or Unique index?

At work we have a big database with unique indexes instead o<em>fem> primary keys and all works <em>fem>ine. 15 Answers ...
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How can I be noti<em>fem>ied when an element is added to the page?

I want a <em>fem>unction o<em>fem> my choosing to run when a DOM element is added to the page. This is in the context o<em>fem> a browser extension, so the webpage runs independently o<em>fem> me and I cannot modi<em>fem>y its source. What are my options here? ...
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Comma in C/C++ macro

Say we have a macro like this 7 Answers 7 ...