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How to upgrade PowerShell version from 2.0 to 3.0

...nd none of the 4 downloads on the page you've linked to "work". By that, I mean that when I run the installer, it says "This update is not applicable to your computer. " and I know from checking version that I am still on PowerShell 2. – Shiva Sep 3 '15 at 20:5...
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SPAN vs DIV (inline-block)

...lement can not have height and width (not without "display: block"), which means it takes the fixed inline size </span> <span class="beispielMargin"> <b>Problem:</b> inline elements (eg span, a, button, input etc.) take "margin" only vertically (margin-left and m...
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REST API Login Pattern

...e this is hash-based message authentication code or HMAC. In practice this means adding a hash code of current message to every request. Hash code calculated by cryptographic hash function in combination with a secret cryptographic key. Cryptographic hash function is either predefined or part of cod...
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How to determine if a number is odd in JavaScript

...1 remainder. Ex3. -7 % 2 = -1 because -7/2 = -3 with -1 remainder. This means if you mod any number x by 2, you get either 0 or 1 or -1. 0 would mean it's even. Anything else would mean it's odd. share | ...
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What exactly is Hot Module Replacement in Webpack?

...every module. If a module has no HMR handlers, the update bubbles up. This means a single handler can handle updates for a complete module tree. If a single module in this tree is updated, the complete module tree is reloaded (only reloaded, not transferred). From the HMR runtime view (technical) ...
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How to center align the ActionBar title in Android?

... I do not know if it is of any use (doubt it will be fixed any time soon). Meanwhile the solution is to check if the child's class is equal to AppCompatImageButton.class and do the same, only increase the width by 30% (e.g. appCompatImageButton.getWidth()*1.3 before subtracting this value from the o...
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difference between iframe, embed and object elements

... you can get the context of the child from the parent and vice versa. This means they you can use scripts in the parent to manipulate the child etc. That part is not possible with <object> or <iframe> where you would have to set up some other mechanism instead, such as the JavaScript pos...
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Peak signal detection in realtime timeseries data

...datapoint is a given x number of standard deviations away from some moving mean, the algorithm signals (also called z-score). The algorithm is very robust because it constructs a separate moving mean and deviation, such that signals do not corrupt the threshold. Future signals are therefore identifi...
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How to get the class of the clicked element?

... What does this mean? Could you explain that more? – apfel007 Jul 10 '09 at 18:13 ...
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Difference between no-cache and must-revalidate

... I believe that must-revalidate means : Once the cache expires, refuse to return stale responses to the user even if they say that stale responses are acceptable. Whereas no-cache implies : must-revalidate plus the fact the response becomes stal...