大约有 14,000 项符合查询结果（耗时：0.0345秒） [XML]
ipython: print complete history (not just current session)
in ipython , I can use %hist or %history to print recent history, but this only prints history from current session.
3...
Remove multiple keys from Map in efficient way?
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Assuming your set contains the strings you want to remove, you can use the keySet method and map.keySet().removeAll(keySet);.
keySet returns a Set view of the keys contained in this map. The set is backed by the map, so changes to the map are reflected in the set, and vice-versa.
C...
How to make an element in XML schema optional?
...so your top example doesn't need to specify it.
– Duncan Jones
Aug 11 '16 at 7:19
1
Indeed, teste...
jQuery removing '-' character from string
... in some other variable not part of the DOM, then you would likely want to call the .replace() function against that variable before you insert it into the DOM.
Like this:
var someVariable = "-123456";
$mylabel.text( someVariable.replace('-', '') );
or a more verbose version:
var someVariable =...
How to filter out files by extension in NERDTree?
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This can be comma-separated to include more patterns: ['\.pyc$', '\.png$']
– hodgkin-huxley
Feb 12 '16 at 15:07
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str.startswith with a list of strings to test for
...supply a tuple of strings to test for:
if link.lower().startswith(("js", "catalog", "script", "katalog")):
From the docs:
str.startswith(prefix[, start[, end]])
Return True if string starts with the prefix, otherwise return False. prefix can also be a tuple of prefixes to look for.
Be...
How to get the title of HTML page with JavaScript?
How can I get the title of an HTML page with JavaScript?
3 Answers
3
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NameError: name 'self' is not defined
...t function define-time, but self is an argument only available at function call time. Thus arguments in the argument list cannot refer each other.
It's a common pattern to default an argument to None and add a test for that in code:
def p(self, b=None):
if b is None:
b = self.a
pri...
What does the “-U” option stand for in pip install -U
Despite a ton of Googling, I can't find any docs for pip's command line options/arguments. What does pip install -U mean? Does anyone have a link to a list of pip's options and arguments?
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How do I select child elements of any depth using XPath?
...Simply use:
//form[@id='myform']//input[@type='submit']
The // shortcut can also be used inside an expression.
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