大约有 16,000 项符合查询结果(耗时:0.0265秒) [XML]
SQL/mysql - Select distinct/UNIQUE but return all columns?
...ht be ... today. As you may notice, this answer is almost 7 years old, a point in time where that wasn't the case insofar as I can recollect from back when I was active. You're welcome to retag and/or edit the answer if you feel it's necessary.
– Denis de Bernardy
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Python string.join(list) on object array rather than string array
...on thing in the universe: join("sep", list) - and all elements of list get converted to their string representations. I've been really struggling to find a solution in python.
– Jason
Feb 23 '18 at 13:12
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How do I read configuration settings from Symfony2 config.yml?
... the first approach and the documentation, it's that the config values are converted into parameters in the MyNiceProjectExtension->load() method with this line: $container->setParameter( 'my_nice_project.contact_email', $processedConfig[ 'contact_email' ]);. Thanks Xavi!
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Resolve promises one after another (i.e. in sequence)?
... take your work
const urls = ['/url1', '/url2', '/url3', '/url4']
// next convert each item to a function that returns a promise
const funcs = urls.map(url => () => $.ajax(url))
// execute them serially
serial(funcs)
.then(console.log.bind(console))
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Decorators with parameters?
...ction with a signature different from the one in the definition. As you point out, it would fit pretty well actually - it's pretty much analogous to how a class method is called. To make it more clear, you could have something like decorator(self_func, param1, ...) convention. But note: I'm not a...
Using new line(\n) in string and rendering the same in HTML
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This answer does not convert \n within text to a newline
– irl_irl
Jul 25 '17 at 11:20
2
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MySQL CONCAT returns NULL if any field contain NULL
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convert the NULL values with empty string by wrapping it in COALESCE
SELECT CONCAT(COALESCE(`affiliate_name`,''),'-',COALESCE(`model`,''),'-',COALESCE(`ip`,''),'-',COALESCE(`os_type`,''),'-',COALESCE(`os_version`,'')) AS dev...
How can I add new keys to a dictionary?
...values at the same time, as long as the keys are strings (since kwargs are converted to strings). dict.update can also take another dictionary, but I personally prefer not to explicitly create a new dictionary in order to update another one.
– bgusach
Feb 13 '1...
How do I declare an array of weak references in Swift?
...hould not be a weak reference - its elements should be. I think Cocoa NSPointerArray offers a non-typesafe version of this.
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Passing HTML to template using Flask/Jinja2
...ing display.
If you only want to insert some linebreaks into a string and convert the linebreaks into <br />, then you could take a jinja macro like:
{% macro linebreaks_for_string( the_string ) -%}
{% if the_string %}
{% for line in the_string.split('\n') %}
<br />
{{ line }}
{% endfo...
