大约有 41,000 项符合查询结果（耗时：0.0555秒） [XML]
Pandas DataFrame Groupby two columns and get counts
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There is no param called name in reset_index() in the current version of pandas: pandas.pydata.org/pandas-docs/stable/generated/…
– mmBs
Nov 25 '18 at 21:27
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JavaScript REST client Library [closed]
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jQuery has JSON-REST plugin with REST style of URI parameter templates. According to its description example of using is the followin: $.Read("/{b}/{a}", { a:'foo', b:'bar', c:3 }) becomes a GET to "/bar/foo?c=3".
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Trim a string based on the string length
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The second param of substring is exclusive, so this answer trims the String to 9 characters.
– emulcahy
Dec 3 '13 at 20:09
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Using G++ to compile multiple .cpp and .h files
...te that:
# "all" is the name of the default target, running "make" without params would use it
all: executable1
# for C++, replace CC (c compiler) with CXX (c++ compiler) which is used as default linker
CC=$(CXX)
# tell which files should be used, .cpp -> .o make would do automatically
executab...
if…else within JSP or JSTL
... simulate if...else, you can use:
<c:choose>
<c:when test="${param.enter=='1'}">
pizza.
<br />
</c:when>
<c:otherwise>
pizzas.
<br />
</c:otherwise>
</c:choose>
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How do you follow an HTTP Redirect in Node.js?
...irects with var request = require('request'); using the followAllRedirects param.
request({
followAllRedirects: true,
url: url
}, function (error, response, body) {
if (!error) {
console.log(response);
}
});
s...
How to select distinct rows in a datatable and store into an array
...able:
dataTable.DefaultView.ToTable(true, "employeeid");
Where:
first parameter in ToTable() is a boolean which indicates whether you want distinct rows or not.
second parameter in the ToTable() is the column name based on which we have to select distinct rows. Only these columns will be in the...
Remove an onclick listener
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/**
* Remove an onclick listener
*
* @param view
* @author malin.myemail@gmail.com
* @website https://github.com/androidmalin
* @data 2016-05-16
*/
public static void unBingListener(View view) {
if (view != null) {
try {
if (view.hasOn...
How to set a JVM TimeZone Properly
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You can pass the JVM this param
-Duser.timezone
For example
-Duser.timezone=Europe/Sofia
and this should do the trick.
Setting the environment variable TZ also does the trick on Linux.
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Does java.util.List.isEmpty() check if the list itself is null? [duplicate]
... specified collection is empty.
* <p>
* Null returns true.
*
* @param coll the collection to check, may be null
* @return true if empty or null
* @since Commons Collections 3.2
*/
public static boolean isEmpty(Collection coll) {
return (coll == null || coll.isEmpty());
}
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