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JavaScript module pattern with example [closed]

...on expression. Here are using function expression. What is namespace? Now if we add the namespace to the above piece of code then var anoyn = (function() { }()); What is closure in JS? It means if we declare any function with any variable scope/inside another function (in JS we can declare...
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How to validate an email address in PHP

...xists. The only way to find that out is by sending a confirmation mail. Now that you have your easy answer feel free to read on about email address validation if you care to learn or otherwise just use the fast answer and move on. No hard feelings. Trying to validate an email address using a re...
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How does Git handle symbolic links?

...th to a library we use. Couldn't figure out what the purpose of it was. I know now what happened. – Matt K Apr 10 '14 at 14:40 28 ...
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How to return an empty ActiveRecord relation?

...and it takes an argument, depending on the value of the argument, I might know that there will not be any matches, but I still want to return a relation, not an empty array: ...
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How can I reliably determine the type of a variable that is declared using var at design time?

... a local can be expensive so we want to defer that work if we need to. We now have a lazily-built database that can tell us the type of every local. So, getting back to that "foo." -- we figure out which statement the relevant expression is in and then run the semantic analyzer against just that st...
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git diff file against its last change

...possible to get git to produce a diff between a specific file as it exists now, and as it existed before the last commit that changed it? ...
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Dialog to pick image from gallery or from camera

... Camera permission is now needed to open camera intent @tasomaniac – Saad Bilal Feb 17 '17 at 10:32 27 ...
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Why are Docker container images so large?

...s base on Alpine. UPDATE: the official Docker images are based on alpine now so they are good to use now. share | improve this answer | follow | ...
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What does the LayoutInflater attachToRoot parameter mean?

... NOW OR NOT NOW The main difference between the "third" parameter attachToRoot being true or false is this. When you put attachToRoot true : add the child view to parent RIGHT NOW false: add the child view to parent...
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Difference between static memory allocation and dynamic memory allocation

I would like to know what is the difference between static memory allocation and dynamic memory allocation? 7 Answers ...