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javascript - Why can't I push to an array in state?

I can't seem to push an object to array in state from an API. This is my code async _fetchData(number){ try{ ... the new URL to this.state.News. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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Google Places coordinates changing keys

I'm using google places API for my ionic APP. The the data model of coordinates it gives before was {A: 12. ... } How do I resolve this issue See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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How to Play Web Address URL to Media Player in android?

My URL contains number medial related URLs which we have to play in media player. When i am passing my any media ... can i resolve this issue ? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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java - TestNG test not getting invoked

I'm trying to connect my db and then run a query to get the result through a testNG test. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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python - Return function that modifies the value of the input function

How can I make a function that is given a function as input and returns a function with the value tripled. ... tripleFunc(f) print newFunc(5) See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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c - malloc of pointer to structure works why?

In a code I accidentally used list* Head = malloc(sizeof(list*)); instead of the correct list* Head = malloc( ... is why did it work properly? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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create categorical variables by condition in python with pandas or statsmodels

I want to create categorical variables from my data with this method: cat.var condition 1 x > 10 2 x == 10 3 ... (mpg <.) (23 real changes made See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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c# - Copying bytes from Bitmap to byte array and back with Marshall.Copy doesn't work right

I want to copy bytes with Marshall.Copy. My code work, but bytes is strange for me. I think, I got indexes ... output (sorry for small images): See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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node.js - how to create a zip file in node given multiple downloadable links

I have a node application that contains several downloadable links (when you click on the link a pdf file is ... how to go about this? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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Python - __init__() missing 1 required positional argument:

I'm kinda new to python and I can't get past this error: Traceback (most recent call last): File "***" ... return self.ertek bst = Node() See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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java - JTextArea line numbers of menu item

I am trying to develop a project using AWT And SWING concepts of Java. In that I have an one menu item ... tx); sp.setRowHeaderView(lines); } See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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java - How to save a string in sharedPreferences

I have an application where I need to save a string in a sharedpreferences so that the user has already opened ... and forgive me for my English See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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html - How to access css file inside a folder in codeigniter application?

I am creating a web page and trying to access a stylesheet which is inside a "application/css/" folder. So how ... /test' is the base url. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Calling multiple functions with names matching Regex

I have some functions like these: function name_a(){} function name_b(){} function name_x(){} function name_n(){} ... . How can I do that? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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sql server - Getting last 24 hours from current time in sql

I am not sure why the dateadd function is not working here. I am trying to pull only the last 24 hours from ... not to see these hours at all. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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How can I randomly add 20 images(10x10) in an empty background image (200x200) in python?

I want the 10 small images to be placed in this circle I'm working on a small project to randomly place or ... to put them in a random location See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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android - how to send images from one activity to other (using file path)

In my app, I am loading images from url's in listview. And onclick of list item I want to show it on next ... { return file.getPath(); } } See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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ruby on rails - Consistently using associated model subclasses

I have a situation where I have basic models that I want to add business logic to. For example, I might ... a better and less redundant way? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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mysql - Which is better 1Table 150,000,000,000 rows or 5000 TABLES with 300,000 rows

Would spreading the workload vertically across many rows increase performance beyond splitting the workload horizontally across ... single one? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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node.js - Flter mongodb database using mongoose nodejs

I need to filter some users according to some fixed criteria. I have a user collection and a talent collection. ... the matching talents.. } } See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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c# - Merge columns of two DataTables using linq

I have two DataTables: dt1 and dt2. dt1: ID | Name | Address | QTY -------+----------+---------+----- ... | C6 | 0 | 350 Can any one help me? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Django,Jquery,Ajax; refreshing div for voting system not working?

I have a working django voting system using up and down keypresses on entries in a database. I need to ... voted_entries[:1] # return random See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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python - Create a Dataframe from list of Dictionaries

Please help me creating a Dataframe from list of dictionaries Dataset = [{'A': ' X1'}, {'B': ' Y1'}, {'A': ... ': ' Z3'}] The output should be: See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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java - Trying to load an image from SDcard on android

I'm trying to load an image from gallery on android but when I pick the image, it doesn't display ... .decodeFile(picturePath)); } } See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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wcf data services - Breeze Webapi Update Projections

Continuing on after my initial WebApi Filtering and paging a projection Dilemma Breeze $filter projections thread I am ... . Kind Regards Mike See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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Guessing a number, true or false? Python

I want to assign something a value and then try and get someone to guess that value. I have tried something ... beginner at this, please help! See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Array of Arrays to Object RECURSIVELY in plain JS

Any Recursive-approach solutions on solving array to object/s (within array) in plain JS (no libraries). ... learn recursive-ity. Thanks! See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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android - !DOCTYPE of type java.lang.String cannot be converted to JSONObject

I'm creating a user login and registration application with Android Studio but I'm a beginner and getting a ... Can anyone help explain it? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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