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mysql - java.sql.SQLException Parameter index out of range (1 > number of parameters, which is 0)

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

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java - SimpleDateFormat ignoring month when parsing

The following code is giving me the parsed date as "Wed Jan 13 00:00:00 EST 2010" instead of "Wed Jun 13 00: ... System.out.println(" Date " + date.toString()); Question&Answers:os...

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

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javascript - Why do we need middleware for async flow in Redux?

According to the docs, "Without middleware, Redux store only supports synchronous data flow". I don't understand why ... seems that this is no longer the case? Question&Answers:os...

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

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javascript - Using Node.js require vs. ES6 import/export

In a project I'm collaborating on, we have two choices on which module system we can use: Importing modules using ... we were to use ES6 modules over Node ones? Question&Answers:os...

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

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.net - Html.Partial vs Html.RenderPartial & Html.Action vs Html.RenderAction

In ASP.NET MVC, what is the difference between: Html.Partial and Html.RenderPartial Html.Action and Html.RenderAction Question&Answers:os...

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

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Removing whitespace from strings in Java

I have a string like this: mysz = "name=john age=13 year=2001"; I want to remove the whitespaces in the ... a string with: mysz2 = "name=johnage=13year=2001" Question&Answers:os...

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What is stability in sorting algorithms and why is it important?

I'm very curious, why stability is or is not important in sorting algorithms? Question&Answers:os...

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Browsers' default CSS for HTML elements

Where can I find a browser's default CSS for HTML elements? Many HTML elements come with some default CSS ... me all this information (or perhaps most)? Question&Answers:os...

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

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python - TypeError: a bytes-like object is required, not 'str' when writing to a file in Python3

I've very recently migrated to Py 3.5. This code was working properly in Python 2.7: with open(fname, ... quickly, but this little statement is bugging me. Question&Answers:os...

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css - How do I hide an element when printing a web page?

I have a link on my webpage to print the webpage. However, the link is also visible in the printout itself. ... " label should not show on the printout itself. Question&Answers:os...

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python - Get last n lines of a file, similar to tail

I'm writing a log file viewer for a web application and for that I want to paginate through the lines of ... the recommended way to tail log files with offsets? Question&Answers:os...

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python - Writing to an Excel spreadsheet

I am new to Python. I need to write some data from my program to a spreadsheet. I've searched online ... program would have around 10 digits after the decimal. Question&Answers:os...

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algorithm - Counting inversions in an array

I'm designing an algorithm to do the following: Given array A[1... n], for every i < j, find ... inversions. Any hints or help would be greatly appreciated. Question&Answers:os...

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angularjs - How do you use $sce.trustAsHtml(string) to replicate ng-bind-html-unsafe in Angular 1.2+

ng-bind-html-unsafe was removed in Angular 1.2 I'm trying to implement something where I need to use ng-bind- ... $sce.trustAsHtml(string). How do you do this? Question&Answers:os...

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

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javascript - Why is typeof null "object"?

I'm reading 'Professional Javascript for Web Developers' Chapter 4 and it tells me that the five types of ... reference), hence making it NOT a primitive? Question&Answers:os...

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

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python - How to merge dictionaries of dictionaries?

I need to merge multiple dictionaries, here's what I have for instance: dict1 = {1:{"a":{A}}, 2:{"b":{B ... I'm not sure how I could do that easily with Python. Question&Answers:os...

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Stop using `global` in PHP

I have a config.php that is included to each page. In config I create an array that looks something like: ... after all but still there are things to clarify. Question&Answers:os...

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

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c# - How to cancel Task await after a timeout period

I am using this method to instantiate a web browser programmatically, navigate to a url and return a result when the ... { thread.Join(); } } #endregion } Question&Answers:os...

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

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big o - What is the difference between Θ(n) and O(n)?

Sometimes I see Θ(n) with the strange Θ symbol with something in the middle of it, and sometimes just O(n ... this symbol, or does it mean something different? Question&Answers:os...

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javascript - Babel 6 regeneratorRuntime is not defined

I'm trying to use async/await from scratch on Babel 6, but I'm getting regeneratorRuntime is not defined. .babelrc ... fine. Any ideas what I'm doing wrong? Question&Answers:os...

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

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android - Load image from url

I have an image URL. I want to display an image from this URL in an ImageView but I am unable to do that. How can this be achieved? Question&Answers:os...

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css - How to place two divs next to each other?

Consider the following code: #wrapper { width: 500px; border: 1px solid black; } #first { width: 300px; border: 1px ... new for the best response.</div> </div> Question&Answers:os...

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

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angularjs - With ng-bind-html-unsafe removed, how do I inject HTML?

I'm trying to use $sanitize provider and the ng-bind-htm-unsafe directive to allow my controller to inject ... http://errors.angularjs.org/undefined/$sce/unsafe Question&Answers:os...

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

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Parse XML using JavaScript

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

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javascript - "SyntaxError: Unexpected token < in JSON at position 0"

In a React app component which handles Facebook-like content feeds, I am running into an error: Feed.js:94 ... I could have possibly changed to break it. Question&Answers:os...

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

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linux - How to grep for contents after pattern?

Given a file, for example: potato: 1234 apple: 5678 potato: 5432 grape: 4567 banana: 5432 sushi: 56789 I'd like to ... would be: 1234 5432 How can I do that? Question&Answers:os...

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

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Determining Referer in PHP

What is the most reliable and secure way to determine what page either sent, or called (via AJAX), the current ... is being called from a page on my website. Question&Answers:os...

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

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python - Pip error: Microsoft Visual C++ 14.0 is required

I just ran the following command: pip install -U steem and the installation worked well until it ... Users***N~1AppDataLocalTemppip-build- k6flhu5kp ycrypto Question&Answers:os...

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

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