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javascript - How to listen for changes to the title element?

In Javascript, is there a technique to listen for changes to the title element? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - How do I maintain ModelState errors when using RedirectToAction?

I have some code that saves a ticket in our system. If there is an error it does a RedirectToAction(). The ... out of the ModelState? Thanks. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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336 views

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c# - WPF MVVM: how to bind GridViewColumn to ViewModel-Collection?

In my View I got a ListView bound to a CollectionView in my ViewModel, for example like this: <ListView ItemsSource= ... in MVVM. any help here? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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language agnostic - Algorithm to find the most common substrings in a string

Is there any algorithm that can be used to find the most common phrases (or substrings) in a string? For ... from most common to least common? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How can I pre-populate html form input fields from url parameters?

I have a vanilla html page which has a form in it. A requirement has come in to be able to pre-populate ... (none are currently used). Thanks. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Is it possible to create custom resolver in webpack?

I have my own convention when require modules. E.g. require("./components/SettingsPanel"); should be resolved ... way to create such resolver? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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scala - Insert if not exists in Slick 3.0.0

I'm trying to insert if not exists, I found this post for 1.0.1, 2.0. I found snippet using ... yield ()).transactionally Thanks in advance See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Building Undo Into an Excel VBA Macro

Excel macros do not seem to allow the use of "undo" after running them. Is there any way to bake undo functionality into a VBA macro in Excel? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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system.data.sqlite .net 4

Is there a .Net 4 version of System.Data.SQLite? At the moment I get this error: Mixed mode assembly is ... another version that I can use? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ajax - How can I communicate over TCP sockets from JavaScript?

I'm thinking about how limiting it is for AJAX apps to have to poll for updates, when what would be ideal is ... and out of the browser plugin. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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471 views

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html - Using rvest or httr to log in to non-standard forms on a webpage

I am attempting to use rvest to spider a webpage that requires an email/password login on a form. rm(list=ls( ... that's behind the login wall? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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http - GET vs POST in AJAX?

Why are there GET and POST requests in AJAX as it does not affect page URL anyway? What difference does it ... getting reflected to page URL? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - View Pager + ImageView +Pinch Zoom + Rotation

I want to implement Pinch Zoom on Imageview, with in View Pager similar to Default Android Gallery. I have found ... me the link for them. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How do I detect the heap size usage of an android application

I would like to know the amount of heap space used by my android application in two ways: - ... heapsize usage of my application? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Pythonic way to convert a list of integers into a string of comma-separated ranges

I have a list of integers which I need to parse into a string of ranges. For example: [0, 1, 2, 3] -> ... could I do to make it more Pythonic? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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313 views

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Communicating with serial USB device over Android

I have one custom made device for measuring current. This device can be connected to PC and communication is done ... it to my android device. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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286 views

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ios - Setting tableHeaderView height dynamically

My application creates a UITableViewController that contains a custom tableHeaderView which may have an arbitrary height. I ... bounds.width } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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512 views

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python - Permission denied error by installing matplotlib

I installed opencv with all dependencies. After the installation I tried to import matplotlib for a simple example ... do to install matplotlib? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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702 views

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iterator - Checking value exist in a std::map - C++

I know find method finds the supplied key in std::map and return an iterator to the element. Is there ... :map doing sequential search? Thanks See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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249 views

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What is the benefit of import in a namespace in R?

The namespace mechanism of R allows one to export functions which then are visible to the user. Furthermore, it ... plot, optim or qchisq? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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729 views

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android - EditText Settext not working with Fragment

I have fragments for 3 states of a screen; Add, Edit and View. In Add, I create an entity and save it. Next ... : I am using android version 2.2 See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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479 views

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c++ - understanding the dangers of sprintf(...)

OWASP says: "C library functions such as strcpy (), strcat (), sprintf () and vsprintf () operate on ... overflow Please confirm/deny. Thanks See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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347 views

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Android AlarmManager setExact() is not exact

I need to plan sheduled task every 10 minutes. As in Lollipop and higher version setRepeating() is inexact, I use ... context, 0, myIntent, 0); See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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370 views

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java - Return HashMap in mybatis and use it as ModelAttribute in spring MVC

I want to display list of categories in my Jsp page using spring mvc @modelAttribute. In my mapper.xml file is < ... Map<>>, is that possible? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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756 views

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performance - ArrayList vs. Vectors in Java if thread safety isn't a concern

Is there really that much of a difference between the performance of Vector and ArrayList? Is it good practice to ... safety isn't an issue? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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330 views

1 answer

The best shortest path algorithm

What is the difference between the "Floyd-Warshall algorithm" and "Dijkstra's Algorithm", and which is the best for finding ... E 20 10 15 15 0 See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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489 views

1 answer

python 3.x - Installing modules to Anaconda from .tar.gz

When I want to install modules to Anaconda, I run conda install. However, now I have a .tar.gz file and want to install this. How to do? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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564 views

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how to count the total number of lines in a text file using python

For example if my text file is: blue green yellow black Here there are four lines and now I want to get the result as four. How can I do that? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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