sorted_long_set | 这是个节省内存的紧凑的map实现,功能类似于HashSet | Datepicker library
kandi X-RAY | sorted_long_set Summary
kandi X-RAY | sorted_long_set Summary
这是个节省内存的紧凑的map实现,功能类似于HashSet.暂时适用于key为固定长度的map, 像long,int等。提供了add,remove,contain,size方法实现。目前主要场景是为了节省内 存,也是初衷,虽然也有不错的性能。 版本1是原始版本(sorted_long_set1),最初的想法是想用一个排序数组做,但是如果 数组大了,每次插入的移动次数会不可接受,这也是以后主要要解决的问题,这个版本的解决 方案是用两个排序数组,一个大的一个小的,先插入小的小的满了再合并到大的。那小的多大 合适,大的长为n,假设小的为m,那么考虑把小的m填满然后合并到大的用了多少移动次数,小 的填满最差用 m*m/2,合并到大的用 n + m,m << n 所以为n,总数为 m*m/2 + n,平均每个需要 (m*m/2 + n)/m = n/m + m/2 ,求最优值m = sqrt(2*n).那么最优平均移动次数为sqrt(2*n). 其他优化包括删除时只标记,以及一些数组扩容及缩小策略,在代码里有注释。 版本2是个实验版本(sorted_long_set2),考虑了用两组这样的结构会有什么效果。这时 每个大的长n/2,假设每个小的还是长m,把m填满还是需要 m*m/2,合并到大的需要 n/2 + m,m< 版本3暂时未实现(sorted_long_set3),这个版本要讨论用几组这样的结构可以达到最佳性 能。版本3将采用环形数组将每组结构连起来,这样方便在组与组之间移动少量数据来平衡而不 需要移动整个组的数据,这点最为关键。接下来还是计算最优值。数据总长度为n,组数为x,每组 带有的小排序数组长度为m, 每组内带有的大排序数组长度为n/x。把m填满最差用 m*m/2,合并到 组内大数组用 n/x + m,m << n/x 所以为 n/x,接下来还有一步,要把m平均到每个组,需要m*x/2 (这就是为什么用环型数组),总数为 m*m/2 + n/x + m*x/2 ,平均每个需要 m/2 + n/(m*x) x/2 ,求最优值m = power(n,1/3), x = power(n,1/3), 最优平均移动次数为 2*power(n,1/3). 在数据量大的情况性能会比前两个版本有量级提高,应该可以战胜HashSet。其实还有个大的提高, 前面两个版本由于块小,在数据扩大和缩小时会变慢,不那么均衡,版本3可以把组的扩大和缩小 分解到到后续一系列的操作中,以均衡性能。.
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Top functions reviewed by kandi - BETA
- Main entry point
- Reduces all elements in the cache
- Add an item to the cache
- Merge the cache
- Randomly selected long
- Copies a range of bytes from src to dst
- Add an ID to the cache
- Merge the keys
- Dumps to stdout
- Is the index deleted?
- Random test
- Printout to stdout
- Main entry point
- Performs a bit scan
sorted_long_set Key Features
sorted_long_set Examples and Code Snippets
Community Discussions
Trending Discussions on Datepicker
QUESTION
I have been looking around on this page (among other forums) in search of an answer for limiting a date picker to 14 days from the day a user accesses the page. Built into the date picker is an option for 'todays date' which is auto configured and sets the date option to todays DD/MM/YY so I gather this can be achieved. What I aim for is every date after 14 days from 'today' to be greyed out and not selectable. I could further develop this so that no dates prior to 'today' can also be selected, but achieving a limit of 14 days after 'today' would be great for now.
I'm familiar with max-date and min-date which require a precise DD/MM/YY format setting boundaries between the listed dates. I require something like 'max-date: today + 14'
...ANSWER
Answered 2022-Mar-24 at 11:58I require something like 'max-date: today + 14'
This is basically your answer, i.e. "set the max attribute to today + 14
and the min attribute to today
". Fairly straightforward to do in JavaScript:
QUESTION
How to filter by date greater than current value in Material table?
This is what I managed so far, it's filtering by exact date and I need to filter all values which are >= that current value in table.
...ANSWER
Answered 2022-Feb-06 at 03:52I managed to solve this without CustomDatePicker
component, since material table has already built in date picker when field type:date
is set.
So what is needed is only function and to call it in Material Table:
QUESTION
I would like to add a 'clear' button to a DatePicker
from @mui/lab
(5.0.0-alpha.55).
What I am attempting:
- Store a
date
field in state, passed as thevalue
prop toDatePicker
- Change the
date
tonull
when desired to 'clear' the value & input
The behaviour I observe:
- If the
date
is valid, it works as expected, and the input is cleared - If the
date
is not valid, theerror
is cleared, but the invalid date still stays in the input.
The rudimentary version I have attempted which shows the behaviour above can be seen here.
If you input a partial date, then click clear
, you can observe that the input does not get cleared.
I would prefer to avoid a solution that involves changing the key
, as that brings other issues, such as not respecting an external source changing the date
to null
, and needing additional hacks to respect the label
transition when clearing the input.
ANSWER
Answered 2021-Nov-21 at 10:47My theory is that internally, DatePicker
only updates the input value if it's different with the last valid value. Below is how the bug can occur:
- You clear the
DatePicker
when there is a valid value (like the initialDate
), the state is reset successfully at first (value=null
,inputValue=''
) - You enter some invalid date. The state is now (
value=Invalid Date
,inputValue='invalid Text'
) - Because the current
value
is invalid, it does not count and theDatePicker
references the last valid value instead which isnull
, then decide that the current value doesn't change and skip dispatching the new input value (value=null
,inputValue='invalid Text'
).
I'd classify this as a bug from MUI, you can create an issue on github if you want it to be fixed. In the meanwhile, you can fix the bug by applying this patch using patch-package
:
- Install
patch-package
:npm i patch-package
- Add
postinstall
script in thepackage.json
QUESTION
I can't add my icon to the component.
https://codesandbox.io/s/materialuipickers-material-demo-forked-soctc
...ANSWER
Answered 2021-Oct-14 at 15:24The components
prop of DatePicker
lets you override the inner components including the OpenPickerIcon
, so this is how you override it. For reference, see the full API of DatePicker
here:
QUESTION
With this code, I able to get selected date as unix. jsfiddle
...ANSWER
Answered 2021-Dec-30 at 13:45You can do it by using getState
method on persianDatepicker
instance, like this:
QUESTION
I have a Datepicker component which contains a Material Datepicker. This component receives a datepickerConfig
object describing how the Datepicker should be styled. For example, this object describes what level of shadow to apply, the focus styles, hover styles, etc.
I'm quite new to Material styling so I'm wondering how I can apply these styles dynamically, during runtime?
As an example, for the shadow, I have declared the following variables in my SCSS file:
...ANSWER
Answered 2021-Dec-14 at 21:03You could use the [ngStyle] directive -- take this example which dynamically sets a width property based on a condition.
QUESTION
I was having some problem when trying to disable dates using date picker from ng2-bootstrap. In my app.module.ts, I imported the library as such:
...ANSWER
Answered 2021-Dec-14 at 04:15It seems the issue is that the datesDisabled
configuration needs to be an array of Dates according to the docs. And you seem to have used dateDisabled
(missing 's')
so your template code should be changed with
QUESTION
I have to use a MUI5 DesktopDatePicker as shown in the manual here https://mui.com/components/pickers/#react-components.
When I clear the date selected, I see dd/mm/yyyy as placeholder as the input format of the DatePicker. I would like to see the placeholder based on the Localization set, e.g. gg/mm/aaaa for the Italian locale. Is this possible? Even setting a custom placeholder?
Here's a Sandbox forked directly from the MUI5 demo.
...ANSWER
Answered 2021-Nov-25 at 15:36You have to change the placeholder of the textfield on renderInput without overwriting the data on params.inputsProps. This would be your new DesktopDatePicker.
QUESTION
I'm trying to change the value of the Material UI Datepicker Input with React Testing Library. But it doesn't seem to work with fireEvent.change()
.
ANSWER
Answered 2021-Aug-28 at 05:16DatePicker
by default will open the calendar view and will not allow you to provide keyboard inputs . You need to use the KeyboardDatePicker
instead .
QUESTION
I am trying to change the Material UI DatePicker date text and calendar icon color.
I tried to change it passing style to InputProps, but it worked only for removing border.
Rather than that, nothing changes, I tried to apply style to theme.tsx, but it also didn't help.
Any help will be appreciated.
ANSWER
Answered 2021-Nov-04 at 21:15Try to inspect element then you can see the styling of the inspected element. Inspect element is so useful.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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Install sorted_long_set
You can use sorted_long_set like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the sorted_long_set component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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