How to check if a string has only one of the speficied character?

问题: I know that I can use .contains() to check if a string has a particular character, but I want to check if a string has only one of the character. For example, if I check...

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  • 发布于 2020-06-27 21:46
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Android ViewPager2 - how to detect user initiated page change

问题: I have the ViewPager2 callback setup but need to detect when a user initiated page change has completed. The callback won't differentiate between user initiated and code in...

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  • 发布于 2020-06-27 21:45
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What happens when I change a variable in a factory function? (javascript) [duplicate]

问题: This question already has answers here: How do JavaScript closures work? (86 answers)...

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  • 发布于 2020-06-27 21:43
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Unable to find a specific hidden field from the Ajax response

问题: I mostly work on the backend and trying to achieve something on the frontend using Jquery.This is what I am trying to accomplish. Pass an URL from the backend as part...

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  • 发布于 2020-06-27 21:43
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Can I make two change event listeners fire each other?

问题: Is it possible to have one change also fire another change event and vice versa so that they work together? /* Filter function LANGUAGE */ $('input[type=radio][na...

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  • 发布于 2020-06-27 21:42
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How to select either one row or the other

问题: I have a table with columns VAT, start and end date. I have two rows. The standard entry has 0000-00-00 as the start and end date and the other row has the start_date 2020-...

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  • 发布于 2020-06-27 21:41
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What's reason for getting time limit exceeded error with my knapsack code?

问题: This is the code which I have written to print the maximum value that can be put in a knapsack of capacity W.If given weights and values available. import java.util.*; pu...

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  • 发布于 2020-06-27 20:38
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How can I remove all leading and trailing punctuation?

问题: I want to remove all the leading and trailing punctuation in a string. How can I do this? Basically, I want to preserve punctuation in between words, and I need to remove...

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  • 发布于 2020-06-27 20:38
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Spark SQL Java Unable to convert fromTuple to Row and Dataframe

问题: I am trying to create Dataset<Row> object from JavaRDD<Tuple2<Row, Row>> object. I am following the below steps, Convert Java<Tuple2<Row,Row...

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  • 发布于 2020-06-27 20:38
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Wave File raw data 16bits Sample values

问题: I am trying to generate a graph showcasing amplitudes of a wave file. I have read the file bytes, then converted to hex via little endian and then converted the values to...

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  • 发布于 2020-06-27 20:38
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css change content with animation on hover

问题: this is possible to create an animation when I hover a text but this is complexe for me. When hover I want the second part of the text shifts to the right and lets appear...

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  • 发布于 2020-06-27 20:36
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window return value when closing modal with the X button

问题: I am developing a web application that our client calls with something like: var result = window.showModalDialog('http://example.com/myapp','My webapp', 'dialogtop=0;dial...

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  • 发布于 2020-06-27 20:36
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Difficulty in web scraping some information after br tag not picked with python beautiful soup

问题: so i have been trying to web scrape a public web directory https://www.kenyaplex.com/business-directory/?start=1&categoryid=286 to get contacts of companies. My code wo...

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  • 发布于 2020-06-27 20:35
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Can Google Places API be used without enabling billing?

问题: I am using Google Places API in my android app to retrieve locations of nearby places such as schools or hospital & display their locations on the map.Now 3 weeks ago I...

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  • 发布于 2020-06-27 20:34
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What would be the cases if Coroutine's Deferred type gets null?

问题: I'm using nested Coroutine blocks in my code. And I'm getting a null value when I tried to get Deferred type's result to a variable. Thus, It causes a casting problem which...

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  • 发布于 2020-06-27 20:34
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How to check if the last TD contain only one input not empty?

问题: I try to remove a row in table. So I check if the last td has only one input field not empty and its not the first row then I delete this row How to do it using jQuery?...

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  • 发布于 2020-06-27 20:33
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Theme switcher in JS

问题: I want to save the user preferred theme (light/dark) in cookies. Can someone help me with it? I'm really bad at JS. I submit my current script. Stylesheets: <link re...

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  • 发布于 2020-06-27 20:33
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Assigning value of data- attribute to seperate html element

问题: I have been trying to build a popup menu using HTML, CSS, jQuery. I obviously don't want to have to copy blocks of code for every menu item and am using (this) with the dat...

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  • 发布于 2020-06-27 20:33
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Set “min-width:100%” for images larger than 400px? JS or CSS

问题: I am trying to set up a JS/jQuery/CSS solution to select images larger than 400px and set them to be the full width of the container (min-width: 100%). However, it should...

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  • 发布于 2020-06-27 20:33
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How to stop the video from playing after modul is closed (ACF)?

问题: i have a problem and i dont know how to fix it. I have a acf repeater, and a video repeater on it from youtube, when i click a button to open the video, the video is opened...

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  • 发布于 2020-06-27 20:31
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