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CSS center display inline block?

...lution wouldn't work for me as I need a child element with display: inline-block to be both horizontally and vertically centered within a 100% width parent. I used Flexbox's justify-content and align-items properties, which respectively allow you to center elements horizontally and vertically. By ...
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How can I get the sha1 hash of a string in node.js?

...hing the UTF-8 representation of the string. Other languages (like Python, PHP or PERL...) are hashing the byte string. We can add binary argument to use the byte string. const crypto = require("crypto"); function sha1(data) { return crypto.createHash("sha1").update(data, "binary").digest("hex...
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Fix warning “Capturing [an object] strongly in this block is likely to lead to a retain cycle” in AR

...ed code, how to fix a warning about a potential retain cycle, when using a block-based API? 7 Answers ...
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How to get past the login page with Wget?

...=foo&password=bar' \ --delete-after \ http://server.com/auth.php # Now grab the page or pages we care about. wget --load-cookies cookies.txt \ http://server.com/interesting/article.php Make sure the --post-data parameter is properly percent-encoded (especially ampersands!) or t...
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TextEnhancer拓展 - 增强App中的文本格式 - App Inventor 2 拓展 - 清泛IT社区,为创新赋能!

...t features to your app, making it more dynamic and engaging for your users.Blocks[size=15.008px]SetTextJustification:Set or unset text justification for the specified label. Justification values: true to justify, false for no justification. blocks (26)[size=15.008px]800×162 15.8 KB [size=15.0...
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Using OpenSSL what does “unable to write 'random state'” mean?

... Yes, if you run from php web server, the user is www-data, and you should add "export" before every openssl: shell_exec('export RANDFILE=".rnd";openssl ecparam -genkey -name secp256k1')) – diyism Jun 21 '13...
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How do I convert an object to an array?

...es with nested objects. in your case you have to do something like; <?php print_r(get_object_vars($response->response->docs)); ?> share | improve this answer | ...
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How to break out from a ruby block?

... want to continue to the next item, use break. When next is used within a block, it causes the block to exit immediately, returning control to the iterator method, which may then begin a new iteration by invoking the block again: f.each do |line| # Iterate over the lines in file f n...
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What is the scope of variables in JavaScript?

...everything Function - visible within a function (and its sub-functions and blocks) Block - visible within a block (and its sub-blocks) Module - visible within a module Outside of the special cases of global and module scope, variables are declared using var (function scope), let (block scope), and ...
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How to align an image dead center with bootstrap

... Twitter Bootstrap v3.0.3 has a class: center-block Center content blocks Set an element to display: block and center via margin. Available as a mixin and class. Just need to add a class .center-block in the img tag, looks like this <div class="container"> <...