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What does T&& (double ampersand) mean in C++11?
...e in the draft C++11 standard, but are not true for the final one! Specifically, it says at various points that rvalue references can bind to lvalues, which was once true, but was changed.(e.g. int x; int &&rrx = x; no longer compiles in GCC) – drewbarbs Jul 13 '14 at 16:12
The biggest d...
Convert integer to string Jinja
... my case I've got integers as strings coming from JSON content files: "hero_title_img_w": "111" and "hero_title_img2_w": "222". Then I'm adding them in .NJK file: {{ hero_title_img_w|int + hero_title_img2_w|int }} to use as image's width attribute. Hope it helps somebody one day.
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理解和配置 Linux 下的 OOM Killer - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...-vm:47388kB, anon-rss:3744kB, file-rss:80kB
httpd invoked oom-killer: gfp_mask=0x201da, order=0, oom_adj=0, oom_score_adj=0
httpd cpuset=/ mems_allowed=0
Pid: 8911, comm: httpd Not tainted 2.6.32-279.1.1.el6.i686 #1
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In where shall I use isset() and !empty()
... it's not a good idea to use this operator for math in case "0" is accidentally a string. This can be dangerous. Instead, use basic >, < and == operators and convert variables using intval() or floatval().
– kaleazy
Feb 14 at 18:08
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How do I loop through or enumerate a JavaScript object?
...uilt-in key-value pairs that have meta-information. When you loop through all the key-value pairs for an object you're looping through them too. hasOwnPropery() filters these out.
– danieltalsky
Jan 27 '12 at 15:56
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Passing a URL with brackets to curl
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For me it worked - on OS X High Sierr, curl 7.54.0 (x86_64-apple-darwin17.0) libcurl/7.54.0.
– Shade
Jun 19 '18 at 10:48
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Localization of DisplayNameAttribute
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I looked all over before finding this page... this is such a life saver. Thanks! Works good on MVC5 for me.
– Kris
Apr 20 '18 at 14:42
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Adding a new value to an existing ENUM Type
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It's worth mentioning that this can all be done in a single transaction, so it's mostly safe to do it in a production database.
– David Leppik
Jul 8 '11 at 20:41
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Pythonic way to print list items
I would like to know if there is a better way to print all objects in a Python list than this :
11 Answers
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How to read if a checkbox is checked in PHP?
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this is the really good form to do this in pure simple php. but have to note that the value of a checkbox is string on when it is activated an a inexisting value if it is checked.
– Elvis Technologies
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