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How to auto-generate a C# class file from a JSON string

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

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typescript - Equivalent of $compile in Angular 2

I want to manually compile some HTML containing directives. What is the equivalent of $compile in Angular 2? For ... element.append(e); $compile(e)($scope); Question&Answers:os...

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

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listview - How to stop EditText from gaining focus at Activity startup in Android

I have an Activity in Android, with two elements: EditText ListView When my Activity starts, the EditText ... not select itself when the Activity starts? Question&Answers:os...

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

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python - How can I randomly select an item from a list?

Assume I have the following list: foo = ['a', 'b', 'c', 'd', 'e'] What is the simplest way to retrieve an item at random from this list? Question&Answers:os...

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

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How to filter a Java Collection (based on predicate)?

I want to filter a java.util.Collection based on a predicate. Question&Answers:os...

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

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http - Are the PUT, DELETE, HEAD, etc methods available in most web browsers?

I've seen a couple questions around here like How to debug RESTful services, which mentions: ... -browser compatibility or non-obvious limitations? Question&Answers:os...

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

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mod rewrite - How to enable mod_rewrite for Apache 2.2

I've got fresh install of Apache 2.2 on my Vista machine, everything works fine, except mod rewrite. ... in apache configuration, that could block mod rewrite? Question&Answers:os...

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

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browser - What is the maximum possible length of a query string?

Is it browser dependent? Also, do different web stacks have different limits on how much data they can get from the request? Question&Answers:os...

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

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javascript - How to deep merge instead of shallow merge?

Both Object.assign and Object spread only do a shallow merge. An example of the problem: // No object nesting const x ... .assign(). Is there a way to do this? Question&Answers:os...

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

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JavaScript set object key by variable

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

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r - Calculate group mean (or other summary stats) and assign to original data

I want to calculate mean (or any other summary statistics of length one, e.g. min, max, length, sum) of a numeric variable ... a 20 15 3 b 100 150 4 b 200 150 Question&Answers:os...

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

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android - How to dynamically add suggestions to autocompletetextview with preserving character status

Problem Description: I am facing some problem with AutoCompleteTextView where I have to show suggestions after each ... doubt if it's a reference problem. Question&Answers:os...

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

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python - How to use multiprocessing pool.map with multiple arguments?

In the Python multiprocessing library, is there a variant of pool.map which supports multiple arguments? text = "test" def ... case, 1) pool.close() pool.join() Question&Answers:os...

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

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Permutations in JavaScript?

I'm trying to write a function that does the following: takes an array of integers as an argument (e.g. [1, ... 've already figured out how to do this in python Question&Answers:os...

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

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python - How to pass arguments to a Button command in Tkinter?

Suppose I have the following Button made with Tkinter in Python: import Tkinter as Tk win = Tk.Toplevel( ... immediately, and pressing the button does nothing. Question&Answers:os...

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

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sql - MySQL how to fill missing dates in range?

I have a table with 2 columns, date and score. It has at most 30 entries, for each of the last 30 days one. date ... last 30 days. I hope I am more clear now. Question&Answers:os...

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

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gradle - Android Studio: Add jar as library?

I'm trying to use the new Android Studio but I can't seem to get it working correctly. I'm using ... . Does anyone know what I'm doing wrong? Question&Answers:os...

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

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c# - Group by in LINQ

Let's suppose if we have a class like: class Person { internal int PersonID; internal string car; } I ... Could someone please point me in the right direction? Question&Answers:os...

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

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objective c - How dangerous is it to compare floating point values?

I know UIKit uses CGFloat because of the resolution independent coordinate system. But every time I want to check if ... zero does not compare to 0 as true? Question&Answers:os...

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

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How do I catch a PHP fatal (`E_ERROR`) error?

I can use set_error_handler() to catch most PHP errors, but it doesn't work for fatal (E_ERROR) errors, such as ... all errors and am running PHP 5.2.3. Question&Answers:os...

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

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python - Convert Pandas Column to DateTime

I have one field in a pandas DataFrame that was imported as string format. It should be a datetime variable. How ... Format in Column: '05SEP2014:00:00:00.000' Question&Answers:os...

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

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javascript - How to sort an array of objects by multiple fields?

From this original question, how would I apply a sort on multiple fields? Using this slightly adapted structure, how ... example, but I'm not having much luck. Question&Answers:os...

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

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SQL Query to concatenate column values from multiple rows in Oracle

Would it be possible to construct SQL to concatenate column values from multiple rows? The following is an example: Table ... Table B? Any help with the SQL? Question&Answers:os...

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

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Javascript equivalent of Python's zip function

Is there a javascript equivalent of Python's zip function? That is, given multiple arrays of equal lengths create an array of pairs. ... [2,'b',5], [3,'c',6]] Question&Answers:os...

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

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192 views

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Android marshmallow request permission?

I am currently working on an application that requires several "dangerous" permissions. So I tried adding "ask for ... using new permission model in my app? Question&Answers:os...

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

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611 views

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boolean logic - Does Python support short-circuiting?

Does Python support short-circuiting in boolean expressions? Question&Answers:os...

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

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swing - Java: maintaining aspect ratio of JPanel background image

I have a JPanel with a painted background image and a layout manager holding other smaller images, all of this ... how to use that correctly to my advantage. Question&Answers:os...

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

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185 views

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security - Fundamental difference between Hashing and Encryption algorithms

I see a lot of confusion between hashes and encryption algorithms and I would like to hear some ... and Encryption? Difference between encryption and hashing Question&Answers:os...

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

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