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Trending in Stackoverflow

See what the Stackoverflow community is most excited about today.

Date: 2017-10-13

  1. In Ruby on Rails, what's the difference between DateTime, Timestamp, Time and Date?

    tags: ruby-on-rails, datetime, date, time, timestamp

    354 votes, 2 answers and 83530 views

    \r\n In my experience, getting dates/times right when programming is always fraught with danger and difficulity. \n\nRuby and Rails have always eluded me on this one, if only due to the overwhelming number ...\r\n

  2. Why does this code, written backwards, print “Hello World!”

    tags:

    214 votes, 4 answers and 11465 views

    \r\n Here is some code that I found on the Internet:\n\nclass M‮{public static void main(String[]a‭){System.out.print(new char[]\n{'H','e','l','l','o',' ','W','o','r','l','d','!'});}} \r\nThis code prints ...\r\n

  3. Pros/cons of using redux-saga with ES6 generators vs redux-thunk with ES2017 async/await

    tags: javascript, reactjs, redux, redux-thunk, redux-saga

    272 votes, 5 answers and 57525 views

    \r\n There is a lot of talk about the latest kid in redux town right now, yelouafi/redux-saga. It uses generator functions for listening to/dispatching actions.\n\nBefore I wrap my head around it, I would ...\r\n

  4. How do you perform wireless debugging in Xcode 9 with iOS 11, Apple TV 4K, etc?

    tags: ios, xcode, debugging, ios11, xcode9

    186 votes, 11 answers and 34756 views

    \r\n Wireless debugging was recently added as a feature in Xcode 9, iOS 11, and tvOS 11. Apple TV 4K doesn't have a USB port, so it requires wireless debugging. How do you perform this wireless debugging ...\r\n

  5. Angular 2 HTTP GET with TypeScript error http.get(…).map is not a function in [null]

    tags: typescript, angular, rxjs

    198 votes, 5 answers and 112709 views

    \r\n I have a problem with HTTP in Angular 2. \n\nI just want to GET a JSON list and show it in the view. \n\nService class\n\nimport {Injectable} from "angular2/core";\nimport {Hall} from "./hall";\nimport {Http} ...\r\n

  6. How to deal with SettingWithCopyWarning in Pandas?

    tags: python, parsing, pandas, dataframe

    181 votes, 6 answers and 160859 views

    \r\n Background\n\nI just upgraded my Pandas from 0.11 to 0.13.0rc1. Now, the application is popping out many new warnings. One of them like this:\n\nE:\FinReporter\FM_EXT.py:449: SettingWithCopyWarning: A ...\r\n

  7. get and set in TypeScript

    tags: typescript

    237 votes, 7 answers and 178153 views

    \r\n I'm trying to create get and set method for a property:\n\nprivate _name: string;\n\nName() {\n get:\n {\n return this._name;\n }\n set:\n {\n this._name = ???;\n }\n}\r\nWhat's the ...\r\n

  8. How to read csv into record array in numpy?

    tags: python, numpy, scipy, genfromtxt

    225 votes, 7 answers and 288607 views

    \r\n I wonder if there is a direct way to import the contents of a csv file into a record array, much in the way that R's read.table(), read.delim(), and read.csv() family imports data to R's data frame? \n\n...\r\n

  9. The use of Swift 3 @objc inference in Swift 4 mode is deprecated?

    tags: swift, swift4, xcode9-beta

    200 votes, 6 answers and 24999 views

    \r\n Briefly, while using Xcode 9 Beta, I have run into the following warning:\r\n The use of Swift 3 @objc inference in Swift 4 mode is deprecated. Please address deprecated @objc inference warnings, test ...\r\n

  10. add one row in a pandas.DataFrame

    tags: python, pandas

    321 votes, 15 answers and 375945 views

    \r\n I understand that pandas is designed to load fully populated DataFrame but I need to create an empty DataFrame then add rows, one by one.\nWhat is the best way to do this ?\n\nI successfully created an ...\r\n