How to remove the previously selected option from a drop-down menu in a table?

问题: I am making a project on angular 7.It has a table with a column having dropdowns. The dropdown contains various languages. When a language is selected in a particular row,...

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  • 发布于 2019-07-08 00:30
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displaying table in html using 'for' loop from render_template()

问题: Using Python Flask app to render a html table with 'for' loop implementation. But the data doesn't render giving a blank <tr><tr>. I am converting a datafram...

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  • 发布于 2019-07-08 00:30
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Display URL entered in v-model within a HTML block

问题: I am trying to create a code snippet builder in VueJS. So I enter a URL in the textbox and it inserts it into the HTML code below which can be copied by the customer and...

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  • 发布于 2019-07-08 00:30
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Why do i get this google guava error when running my project?

问题: Whenever I try to run my project i get following error: org.gradle.internal.exceptions.LocationAwareException: Execution failed for task ':app:checkDebugDuplicateClasses'...

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  • 发布于 2019-07-08 00:29
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All RecyclerView items are not visible when using RecyclerView in ConstraintLayout

问题: I am using ConstraintLayout as a parent and put recyclerview in it to populate the list. Suppose I have to give item count 5 to populate the list and run the code then the...

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  • 发布于 2019-07-08 00:29
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Javascript files appears duplicated in ajax navigation

问题: I´m having troubles with AJAX navigation, the problem is javascript files loaded remains in the browser after the new content is loaded even they arent in the DOM anymore,...

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  • 发布于 2019-07-08 00:28
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JavaScript: Create Object given .map() input arguments without using ES6 {} Shortcut

问题: I am currently using JavaScript ES6 to create the following output object from a .map array method. const indexAndValue = (arr) => { return arr.map((elem, index) =...

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  • 发布于 2019-07-08 00:27
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Trying to include a simple module - can't get it to work Pure Javascript

问题: I am trying to include a simple module I made, and it is not working. From my index.html page, I am including this file: login-view-model.js import {localStorageServi...

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  • 发布于 2019-07-08 00:26
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How to write a JavaScript condition that reports if git commands succeed or fail in the terminal?

问题: I am a begginer I am trying to create a VS Code extension that will do 4 git commands for me (checkout, pull, merge and push). My problem is in my condition... I want the...

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  • 发布于 2019-07-08 00:26
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Getting this.id on model validation returns undefined

问题: I'm getting this as undefined on field's validate, but the same occurs even if I set in third argument of Sequelize.defineto use other fields as documentation describes....

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  • 发布于 2019-07-08 00:26
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Use absolute path in React components

问题: How I can use absolute path from root and change root, for import components? import Modal from project/app/src/Components/Modal import Main from ../../../../Constants...

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  • 发布于 2019-07-08 00:26
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Numbering CROSS Apply rows

问题: I'd like to number the rows created by using cross apply. Lets say I have a table like this key|value ---+----- 1 | A 2 | B and I run select * from t CROSS appl...

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  • 发布于 2019-07-08 00:25
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Can mysql json_contains be case insensitive?

问题: I want to be able to 'search' case insensitive with json_contains This is the json example: [ { "title": "foo Bar", "author": "melaine" }, { "title":...

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  • 发布于 2019-07-08 00:25
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cannot delete database mysql with php [duplicate]

问题: This question already has an answer here: PHP Mysql delete Query not working properly 3 answers I tried to delete user from mysql database with thi...

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  • 发布于 2019-07-08 00:23
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How to add onclick event in the items of BootstrapDropDown

问题: I need to know when you click on one of the elements It can be done from the xml using 'android:onClick' ? This is my code: <com.beardedhen.androidbootstrap.Bootstra...

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  • 发布于 2019-07-07 23:22
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How to manage Microsoft SQL Server with Vert.x JDBC client?

问题: Within a Vert.x application (running on Windows 10), I'm trying to use a JDBCClient to get a connection to a Microsoft SQL Server 2008 R2. These are the steps I did so fa...

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  • 发布于 2019-07-07 23:22
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Using self-referential generic types in Java

问题: Consider the following Java method: <T extends List<T>> List<T> getMyList() { return Collections.emptyList(); } I can assign its output to a vari...

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  • 发布于 2019-07-07 23:21
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After updating targetSDK to 28 ,Snackbar is giving error?

问题: After updating my targetSDK version to 28, I am not able to use the SnackBar Must be one of BaseTransientBottomBar.LENGTH_INDEFINITE, BaseTransientBottomBar.LENGTH_SH...

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  • 发布于 2019-07-07 23:18
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Integrating the Spotify SDK with Android

问题: I want to know if it is compulsory to install the Spotify app when integrating the Spotify SDK with Android. Can anyone help me out with this? I am using the new Spotify SD...

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  • 发布于 2019-07-07 23:18
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Why isn't Django detecting the data I'm sending in a javascript fetch POST request?

问题: I'm POSTing data using the fetch api. In the body I send the employee_id, yet I'm getting a MulitDictKey error from Django saying it (and the other data, for that matter) w...

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  • 发布于 2019-07-07 23:15
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