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Can git automatically switch between spaces and tabs?

I use tabs for indentation in my python programs, but I would like to collaborate (using git) with people who ... /fetching? (similar to the CR/LF conversion) Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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336 views

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c - How do you allow spaces to be entered using scanf?

Using the following code: char *name = malloc(sizeof(char) + 256); printf("What is your name? "); scanf("%s ... after Lucas. How do I make scanf() allow spaces Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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jsf 2 - How does the 'binding' attribute work in JSF? When and how should it be used?

There are lot of materials out there differentiating value attribute and binding attribute in JSF. I'm interested in ... form> Where is the binding stored here? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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291 views

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jquery - How to get image size (height & width) using JavaScript?

Are there any JavaScript or jQuery APIs or methods to get the dimensions of an image on the page? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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94 views

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javascript - Benefits of using `Object.create` for inheritance

I've been trying to wrap my head around the new Object.create method which was introduced in ECMAScript 5. Usually ... also work. So now I'm totally confused Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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shell - How to print lines between two patterns, inclusive or exclusive (in sed, AWK or Perl)?

I have a file like the following and I would like to print the lines between two given patterns PAT1 and PAT2 ... can I print all lines between two patterns? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - What is the difference between ++i and i++?

In C, what is the difference between using ++i and i++, and which should be used in the incrementation block of a for loop? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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sql - Insert into ... values ( SELECT ... FROM ... )

I am trying to INSERT INTO a table using the input from another table. Although this is entirely ... values without worrying about the underlying database? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Using python's eval() vs. ast.literal_eval()

I have a situation with some code where eval() came up as a possible solution. Now I have never had to ... ast module's .literal_eval() the only safe option? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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__proto__ VS. prototype in JavaScript

This figure again shows that every object has a prototype. Constructor function Foo also has its own ... The figure was taken from dmitrysoshnikov.com. Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Detect whether there is an Internet connection available on Android

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asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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315 views

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javascript - How to send FormData objects with Ajax-requests in jQuery?

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asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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html - Set cookie and get cookie with JavaScript

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asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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61 views

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java - Design Patterns web based applications

Closed. This question is opinion-based. It is not currently accepting answers. Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Printing Lists as Tabular Data

I am quite new to Python and I am now struggling with formatting my data nicely for printed output. I have ... probably missing it due to lack of experience. Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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302 views

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r - Remove rows with all or some NAs (missing values) in data.frame

I'd like to remove the lines in this data frame that: a) contain NAs across all columns. Below is my example data ... NA NA 1 2 6 ENSG00000221312 0 1 2 3 2 Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How do I remove diacritics (accents) from a string in .NET?

I'm trying to convert some strings that are in French Canadian and basically, I'd like to be able to take ... ) What is the best method for achieving this? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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143 views

1 answer

c++ - What exactly is the "as-if" rule?

As the title says: What exactly is the "as-if" rule? A typical answer one would get is: The rule that ... ++ both, because it is relevant to both languages. Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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348 views

1 answer

C pointer to array/array of pointers disambiguation

What is the difference between the following declarations: int* arr1[8]; int (*arr2)[8]; int * ... the general rule for understanding more complex declarations? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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383 views

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syntax - What does map(&:name) mean in Ruby?

I found this code in a RailsCast: def tag_names @tag_names || tags.map(&:name).join(' ') end What does the (&:name) in map(&:name) mean? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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168 views

1 answer

php - Grabbing the href attribute of an A element

Trying to find the links on a page. my regex is: /<as[^>]*href=("'??)([^"' >]*?)[^>]*>(.*)</ ... my regex to deal with href not placed first in the a tag? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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239 views

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debugging - How can I get useful error messages in PHP?

Quite often I will try and run a PHP script and just get a blank screen back. No error message; just an ... to produce a useful error message, like Java does? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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175 views

1 answer

List comprehension without [ ] in Python

Joining a list: >>> ''.join([ str(_) for _ in xrange(10) ]) '0123456789' join must take an iterable. ... in xrange(10) also produce a list or an iterable? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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209 views

1 answer

oop - What's the difference between a method and a function?

Can someone provide a simple explanation of methods vs. functions in OOP context? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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84 views

1 answer

Download File Using JavaScript/jQuery

I have a very similar requirement specified here. I need to have the user's browser start a download manually when ... in new window/tab. How is this possible? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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194 views

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c++ - How come a non-const reference cannot bind to a temporary object?

Why is it not allowed to get non-const reference to a temporary object, which function getx() returns? Clearly, this is ... X& x = getx().ref(); // OK Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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276 views

1 answer

http - Java URL encoding of query string parameters

Say I have a URL http://example.com/query?q= and I have a query entered by the user such as: random word ... /URL objects but none of them come out quite right. Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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174 views

1 answer

python - How to get POSTed JSON in Flask?

I'm trying to build a simple API using Flask, in which I now want to read some POSTed JSON. I do the ... can get the posted JSON from within the Flask method? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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