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c++ - determine size of array if passed to function

Is it possible to determine the size of an array if it was passed to another function (size isn't ... value specified in the initialization of the array.. Question&Answers:os...

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

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76 views

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java - Spring Security : Multiple HTTP Config not working

I am trying to use Spring Security and I have a use case where I want different login pages and different ... 've searched for other answers but none worked. Question&Answers:os...

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

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148 views

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php - How can I prevent SQL injection with dynamic tablenames?

I had this discussion with a high reputation PHP guy: PDO has no use here. as well as mysql_real_escape_string ... the JavaScript code gets send client-side. Question&Answers:os...

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

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c# - Line delimited json serializing and de-serializing

I am using JSON.NET and C# 5. I need to serialize/de-serialize list of objects into line delimited json. http ... seperataly and join in the end with new-line. Question&Answers:os...

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

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WebDriverException: Message: 'chromedriver' executable needs to be in PATH while setting UserAgent through Selenium Chromedriver python

I'm a newbie in webscraping, I'm trying to modify my user agent using these lines : from selenium import ... home Can you please help me fix this issue? Question&Answers:os...

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

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mysql - Strange duplicate behavior from GROUP_CONCAT of two LEFT JOINs of GROUP_BYs

Here is all my tables' structure and the query (please focus on the last query, appended below). As you see in ... ORDER BY q1.reputation DESC, q1.score DESC ; Question&Answers:os...

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

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mongodb - Possibility of duplicate Mongo ObjectId's being generated in two different collections?

Is it possible for the same exact Mongo ObjectId to be generated for a document in two different collections? ... elected official '_id' in the users document. Question&Answers:os...

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

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shell - How to delete duplicate lines in a file without sorting it in Unix?

Is there a way to delete duplicate lines in a file in Unix? I can do it with sort -u and uniq commands, but I want to use sed or awk. Is that possible? Question&Answers:os...

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

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android - Difference between getDefaultSharedPreferences and getSharedPreferences

What is the difference between getDefaultSharedPreferences and getSharedPreferences in Android? Can anyone please explain? Question&Answers:os...

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

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c# - How to create and use resources in .NET

How do I create a resource that I can reference and use in various parts of my program easily? My specific ... I've been struggling with for a long time. Question&Answers:os...

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

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Why should a Java class implement comparable?

Why is Java Comparable used? Why would someone implement Comparable in a class? What is a real life example where you need to implement comparable? Question&Answers:os...

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

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python - Why am I seeing "TypeError: string indices must be integers"?

I'm playing with both learning python and trying to get github issues into a readable form. Using the advice on How ... u'Add missing paging (Older>>) lin... Question&Answers:os...

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

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394 views

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c# - Decimal precision and scale in EF Code First

I'm experimenting with this code-first approach, but I'm find out now that a property of type System.Decimal ... do I set the precision of the database column? Question&Answers:os...

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

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javascript - Can I access variables from another file?

Is it possible to use a variable in a file called first.js inside another file called second.js? first.js contains a variable called colorcodes. Question&Answers:os...

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

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Why does the order of media queries matter in CSS?

Of late, I've been designing sites that are more responsive and I've been using CSS media queries frequently. One ... seems it does. What could be the reason? Question&Answers:os...

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

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235 views

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SQL Server Process Queue Race Condition

I have an order queue that is accessed by multiple order processors through a stored procedure. Each ... .. FROM OrderTable WHERE ProcessorID = @PROCID Question&Answers:os...

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

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284 views

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swift - Protocol func returning Self

I have a protocol P that returns a copy of the object: protocol P { func copy() -> Self } and a class ... then nothing would work. Is there any way around this? Question&Answers:os...

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

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154 views

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syntax - What does '<?=' mean in PHP?

<?php $a=1; ?> <?=$a;?> What does <?= mean exactly? Question&Answers:os...

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

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342 views

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Call a javascript function at a specific time of day

for example i want to call a js function at 10.00.00.00 am how can i do? <script type="text/javascript"> ... it will do it again? whats wrong with that code? Question&Answers:os...

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

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How to read a specific line using the specific line number from a file in Java?

In Java, is there any method to read a particular line from a file? For example, read line 32 or any other line number. Question&Answers:os...

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

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597 views

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stdout - How to make output of any shell command unbuffered?

Is there a way to run shell commands without output buffering? For example, hexdump file | ./my_script will ... solution how to make any command unbuffered? Question&Answers:os...

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

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248 views

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jquery - How to use type: "POST" in jsonp ajax call

I am using JQuery ajax jsonp. I have got below JQuery Code: $.ajax({ type:"GET", url: "Login.aspx", // ... "GET", Please suggest how can I achieve this. Thanks Question&Answers:os...

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

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648 views

1 answer

operators - What does the question mark character ('?') mean in C++?

int qempty() { return (f == r ? 1 : 0); } In the above snippet, what does "?" mean? What can we replace it with? Question&Answers:os...

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

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164 views

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android - How do I programmatically add buttons into layout one by one in several lines?

How to create a list of buttons one by one in several lines? I made this: LinearLayout layout = (LinearLayout) ... How to go to the next line programmatically? Question&Answers:os...

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

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873 views

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bash - Jq to replace text directly on file (like sed -i)

I have a json file that needs to be updated on a certain condition. Sample json { "Actions" : [ { "value" ... changes on the file directly (similar to sed -i). Question&Answers:os...

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

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289 views

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html - Stretch text to fit width of div

I have a div with a fixed width, but the text inside the div can change. Is there a way of setting, ... the letters so the text always fills the div perfectly? Question&Answers:os...

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

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260 views

1 answer

python - Transposing a 1D NumPy array

I use Python and NumPy and have some problems with "transpose": import numpy as np a = np.array([5,4]) print(a) print( ... need the transpose of [...,...,...]. Question&Answers:os...

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

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214 views

1 answer

Android file chooser

Closed. This question needs to be more focused. It is not currently accepting answers. Question&Answers:os...

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

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