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Handle file download from ajax post
...eate a form, use the POST method, submit the form - there's no need for an iframe. When the server page responds to the request, write a response header for the mime type of the file, and it will present a download dialog - I've done this a number of times.
You want content-type of application/dow...
Python-equivalent of short-form “if” in C++ [duplicate]
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a = '123' if b else '456'
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Check if a string has a certain piece of text [duplicate]
I'm trying to check if a string I import into my application has a certain piece of text. I know how to do this with jQuery, but how do I do it with straight up JavaScript?
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find first sequence item that matches a criterion [duplicate]
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If you don't have any other indexes or sorted information for your objects, then you will have to iterate until such an object is found:
next(obj for obj in objs if obj.val==5)
This is however faster than a complete list c...
php中0,null,empty,空,false,字符串关系详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...个测试还是很需要的。
这是关键的一个例子：
<?php
if('safdasefasefasf'==0){
echo "该字符串转换为数字 等于 0 <br/>";
} //output:该字符串转换为数字 等于零。
?>
手册上有解释：该值由字符串最前面的部分决定。如果字符串以合...
Should programmers use SSIS, and if so, why? [closed]
...maybe some limited transformation and conditional branching along the way. If your packages contain a lot of script then your team is using SSIS for the wrong tasks or isn't comfortable with SQL or has bought into the hype. SSIS packages are very difficult to debug. Script components are an absolute...
How do I accomplish an if/else in mustache.js?
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This is how you do if/else in Mustache (perfectly supported):
{{#repo}}
<b>{{name}}</b>
{{/repo}}
{{^repo}}
No repos :(
{{/repo}}
Or in your case:
{{#author}}
{{#avatar}}
<img src="{{avatar}}"/>
{{/avatar}}
{...
How to set current working directory to the directory of the script in bash?
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It's worth noting that things can break if a symbolic link makes up part of $0. In your script you may expect, for example, ../../ to refer to the directory two levels above the script's location, but this isn't necessarily the case if symbolic links are in play.
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How to avoid “RuntimeError: dictionary changed size during iteration” error?
....x calling keys makes a copy of the key that you can iterate over while modifying the dict:
for i in d.keys():
Note that this doesn't work in Python 3.x because keys returns an iterator instead of a list.
Another way is to use list to force a copy of the keys to be made. This one also works in P...
Does a finally block always get executed in Java?
...e try or catch code blocks.
The only times finally won't be called are:
If you invoke System.exit()
If you invoke Runtime.getRuntime().halt(exitStatus)
If the JVM crashes first
If the JVM reaches an infinite loop (or some other non-interruptable, non-terminating statement) in the try or catch blo...