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Check if an element is present in an array [duplicate]
...ot contain "includes". Please correct. en.wikipedia.org/wiki/ECMAScript#7th_Edition_-_ECMAScript_2016
– Juergen
Jan 9 '19 at 18:37
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find -exec a shell function in Linux?
...ssue by changing while read for a for loop; for item in $(find . ); do some_function "${item}"; done
– user5359531
Oct 22 '18 at 16:44
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sho...
Django South - table already exists
...
Although the table "myapp_tablename" already exists error stop raising
after I did ./manage.py migrate myapp --fake, the DatabaseError shows
no such column: myapp_mymodel.added_field.
Got exactly the same problem!
1.Firstly check the migration...
领域驱动设计系列（三）:事件驱动上 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...ce emailService, IEquipmentRepository equipmentRepository)
{
_emailService = emailService;
_equipmentRepository = equipmentRepository;
}
为何用事件？
SRP （单一职责)
比如我们一个会议室预定系统，我们的一个设备坏了。我们需要通知...
【phpcms v9】html静态化设置及URL规则优化 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...成：
{$categorydir}{$catdir}/index.html|{$categorydir}{$catdir}/index_{$page}.html
按照栏目index页面生成，栏目列表变成：index.html、index_2.html、index_3.html……这样比较明朗。
如果要自定义生成到某一个固定的目录，可以在前面添加一个特...
Undefined reference to symbol X509_free - C/C++ - 清泛网 - 专注C/C++及内核技术
Undefined reference to symbol X509_freeundefined-reference-to-symbol-x509-freeUndefined reference to symbol X509_free 编译错误的解决方法：链接库中增加 -lcrypto，而非 -lcrypt参考：https: stackoverflow com questions 33215936 undefined-reference-to-symbol-x509-freeUndefined refer...
Iterate over object keys in node.js
...e passed to .forEach.
Object.keys(myObject).forEach(function(element, key, _array) {
// element is the name of the key.
// key is just a numerical value for the array
// _array is the array of all the keys
// this keyword = secondArg
this.foo;
this.bar();
}, secondArg);
...
How to slice an array in Bash
...his or arguments that contained spaces would get split: ARGS=( "$@" ); ARGS_AFTER_FIRST=( "${ARGS[@]:1}" )
– Heath Borders
Jan 27 '16 at 21:15
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How do you test functions and closures for equality?
...uence language design, so without a quick fix like the now deprecated @objc_block in matt's answer, I would argue that Swift can't properly store and retrieve closures at this time. So I don't think it's appropriate to advocate the use of Swift in callback heavy code like the kind encountered in we...
Remove the legend on a matplotlib figure
....0rc4, a remove method has been added to the legend object.
Usage:
ax.get_legend().remove()
or
legend = ax.legend(...)
...
legend.remove()
See here for the commit where this was introduced.
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