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Pass variables to Ruby script via command line
...led RubyInstaller on Windows and I'm running IMAP Sync but I need to use it to sync hundreds of accounts. If I could pass these variables to it via command line I could automate the whole process better.
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How do I get LaTeX to hyphenate a word that contains a dash?
In a LaTeX document I'm writing, I get an overfull hbox warning because of the word "multi-disciplinary", which happens to be rendered at the end of a line.
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Divide a number by 3 without using *, /, +, -, % operators
How would you divide a number by 3 without using * , / , + , - , % , operators?
48 Answers
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What's the difference between an id and a class?
...the difference between <div class=""> and <div id=""> when it comes to CSS? Is it alright to use <div id=""> ?
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Python Sets vs Lists
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It depends on what you are intending to do with it.
Sets are significantly faster when it comes to determining if an object is present in the set (as in x in s), but are slower than lists when it comes to iterating over thei...
Why doesn't margin:auto center an image?
The div expands to 100% as it should but the image does not center itself. Why?
8 Answers
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Toggle Checkboxes on/off
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You can write:
$(document).ready(function() {
$("#select-all-teammembers").click(function() {
var checkBoxes = $("input[name=recipients\\[\\]]");
checkBoxes.prop("checked", !checkBoxes.prop("checked"));
}); ...
What are “signed” cookies in connect/expressjs?
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The cookie will still be visible, but it has a signature, so it can detect if the client modified the cookie.
It works by creating a HMAC of the value (current cookie), and base64 encoded it. When the cookie gets read, it recalculates the signature and makes sur...
Expand a div to fill the remaining width
...gger something called a "block formatting context" (BFC), which interacts with floats in a specific way.
Just take that second div, remove the float, and give it overflow:hidden instead. Any overflow value other than visible makes the block it's set on become a BFC. BFCs don't allow descendant fl...
Access-Control-Allow-Origin Multiple Origin Domains?
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Sounds like the recommended way to do it is to have your server read the Origin header from the client, compare that to the list of domains you would like to allow, and if it matches, echo the value of the Origin header back to the client as the Access-Control-Al...