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What does the JSLint error 'body of a for in should be wrapped in an if statement' mean?
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First of all, never use a for in loop to enumerate over an array. Never. Use good old for(var i = 0; i<arr.length; i++).
The reason behind this is the following: each object in JavaScript has a special field called prototype. Ever...
How to concatenate strings in twig
...like Alessandro said, and here it is in the documentation:
~: Converts all operands into strings and concatenates them. {{ "Hello
" ~ name ~ "!" }} would return (assuming name is 'John') Hello John!. – http://twig.sensiolabs.org/doc/templates.html#other-operators
And here is an example so...
远程临场机器人 你会买单吗？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...苹果表，很多人都知道是什么知道怎么用，我们要一点点调试。前期我在上海谈了十几家合作，加起来有20个点，我可能先把这20个点搞好。”孔尧说。
孔尧和他的团队认为，最具商业想象空间的还是企业级应用。与重点地域的...
PHP Warning: PHP Startup: Unable to load dynamic library
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3. or install the missing expected extension
– Andrew
May 3 '17 at 12:58
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POST unchecked HTML checkboxes
... Hard to believe authors designed it this way. Why not to send all input fields with some default value for those not checked :( It would be much clearer solution then having to implement some hidden fields "hack". It must have been clear that it is going to be needed and they had to see...
html5 localStorage error with Safari: “QUOTA_EXCEEDED_ERR: DOM Exception 22: An attempt was made to
...wsing mode, it appears as though localStorage is available, but trying to call setItem throws an exception.
store.js line 73
"QUOTA_EXCEEDED_ERR: DOM Exception 22: An attempt was made to add something to storage that exceeded the quota."
What happens is that the window object still exposes localS...
Mechanisms for tracking DB schema changes [closed]
...ed code to a production server) but we're still doing database updates manually. I would like to find or create a solution that allows us to work efficiently across servers with different environments while continuing to use Subversion as a backend through which code and DB updates are pushed aroun...
How can I make PHP display the error instead of giving me 500 Internal Server Error [duplicate]
This has never happened before. Usually it displays the error, but now it just gives me a 500 internal server error. Of course before, when it displayed the error, it was different servers. Now I'm on a new server (I have full root, so if I need to configure it somewhere in the php.ini, I can.) Or p...
Internal Error 500 Apache, but nothing in the logs?
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Please Note: The original poster was not specifically asking about PHP. All the php centric answers make large assumptions not relevant to the actual question.
The default error log as opposed to the scripts error logs usually has the (more) specific error. often it will b...
How to make a website secured with https
I have to build a small webapp for a company to maintain their business data... Only those within the company will be using it, but we are planning to host it in public domain, so that the employees can connect to app from various locations. (Till now I have built web apps that are hosted internall...