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How to find the length of an array list? [duplicate]
... myList.size() gives actual no of elements in the list. Note that since indexing starts from 0, no of elements (according to indexing) will be size() - 1.
– vadiraj jahagirdar
Apr 29 '19 at 7:11
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Use a list of values to select rows from a pandas dataframe [duplicate]
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This was an example of boolean indexing which keeps the order off the index, see pandas.pydata.org/pandas-docs/stable/… for more details. A sort after the selection is needed.
– Wouter Overmeire
Aug 18 '14 at 15:16
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Where can I find Android's default icons? [duplicate]
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Or download the stuff from http://developer.android.com/design/downloads/index.html
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How can I put the current running linux process in background? [closed]
... &1 to a filename.
In addition: You can use the jobs command to see an indexed list of those backgrounded processes. And you can kill a backgrounded process by running kill %1 or kill %2 with the number being the index of the process.
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What Does This Mean in PHP -> or => [duplicate]
...This can be used to set values of any acceptable type into a corresponding index of an array. The index can be associative (string based) or numeric.
$myArray = array(
0 => 'Big',
1 => 'Small',
2 => 'Up',
3 => 'Down'
);
The object operator, ->, is used in object sco...
Can a relative sitemap url be used in a robots.txt?
... it's always recommended to use absolute URL's for better crawlability and indexability.
Therefore, you can not use this variation
> sitemap: /sitemap.xml
Recommended syntax is
Sitemap: https://www.yourdomain.com/sitemap.xml
Note:
Don't forgot to capitalise the first letter in "sitemap"
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Binding ng-model inside ng-repeat loop in AngularJS
... <span>
<input title="{{filter_option.order_name[$index]}}" type="radio" ng-model="filter_param.order_option" ng-value="'{{val}}'" />
&nbsp;{{filter_option.order_name[$index]}}
</span>
<select title="" ng-model="filter_param[val]"&...
How to filter array in subdocument with MongoDB [duplicate]
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Does this solution utilises the indexes, inside the array elements (if the array element is a document in itself) ? Suppose there is an index on some path in the array element.
– kartik
Sep 23 at 15:00
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Why aren't my ball (objects) shrinking/disappearing?
... timing callback (like a setInterval operation).
.splice expects a numeric index, not an object. You can get the numeric index of an object with indexOf:
balls.splice(balls.indexOf(p), 1);
By the time your interval runs for the first time, the balls.splice statement has already happened (it happen...
什么是 Ringbuffer ？ - C/C++ - 清泛网 - 专注C/C++及内核技术
...以通过mod操作：
sequence mod array length = array index
以上面的ringbuffer为例（java的mod语法）：12 % 10 = 2。很简单吧。
事实上，上图中的ringbuffer只有10个槽完全是个意外。如果槽的个数是2的N次方更有利于基于二进制的...