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近期 Chrome 下 Discuz 兼容问题修复记录：AJAX 提交失效与移动链接误跳转 ...
...类等 AJAX 表单提交已恢复正常。
例如访问：
forum.php?mod=viewthread&tid=2865&fromguid=hot&extra=&mobile=2
不会正常回到对应的电脑版帖子地址，而是错误跳转到：
misc.php?mod=mobile
原因：
Discuz 全局移动识别逻辑里，当请求...
Deep copying an NSArray
...ly need a one-level-deep copy:
NSMutableArray *newArray = [[NSMutableArray alloc]
initWithArray:oldArray copyItems:YES];
The above code creates a new array whose members are shallow copies of the members of the old array.
Note that if you need to deeply copy an entire...
After array_filter(), how can I reset the keys to go in numerical order starting at 0
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The link no longer work, use php.net/manual/en/function.array-values.php instead. I can't update it, as i need to change at least 6 characters.
– Rasmus Hansen
Feb 16 '19 at 15:15
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Get current domain
...ometimes forget which one to use myself - I think this can be nifty.
<?php
// Change banana.com to the domain you were looking for..
$wordToHighlight = "banana.com";
$serverVarHighlighted = str_replace( $wordToHighlight, '<span style=\'background-color:#883399; color: #FFFFFF;\'&g...
Laravel Check If Related Model Exists
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In php 7.2+ you can't use count on the relation object, so there's no one-fits-all method for all relations. Use query method instead as @tremby provided below:
$model->relation()->exists()
generic solution working on...
Strtotime() doesn't work with dd/mm/YYYY format
...
You can parse dates from a custom format (as of PHP 5.3) with DateTime::createFromFormat
$timestamp = DateTime::createFromFormat('!d/m/Y', '23/05/2010')->getTimestamp();
(Aside: The ! is used to reset non-specified values to the Unix timestamp, ie. the time will be m...
Python memory leaks [closed]
...
Tracemalloc module was integrated as a built-in module starting from Python 3.4, and appearently, it's also available for prior versions of Python as a third-party library (haven't tested it though).
This module is able to output ...
How to convert an int to string in C?
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To be sure tat ENOUGH is enough we can do it by malloc(sizeof(char)*(int)log10(num))
– Hauleth
Nov 24 '11 at 13:25
2
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If my interface must return Task what is the best way to have a no-operation implementation?
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@Asad it reduces allocations (and with it GC time). Instead of allocation new memory and constructing a Task instance each time you need a completed Task, you only do this once.
– i3arnon
Aug 7 '15 at 9:...
string.IsNullOrEmpty(string) vs. string.IsNullOrWhiteSpace(string)
...NullOrEmpty(value) || value.Trim().Length == 0;, which involves new string allocation and two separate checks. Most probably inside IsNullOrWhitespace it is done via single pass without any allocations by checking that each char in the string is the whitespace, hence superior performance. What confu...