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Trending in Stackoverflow

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Date: 2017-09-29

  1. How to use Jackson to deserialise an array of objects

    tags: java, json, jackson

    406 votes, 5 answers and 282651 views

    \r\n The Jackson data binding documentation indicates that Jackson supports deserialising "Arrays of all supported types" but I can't figure out the exact syntax for this.\n\nFor a single object I would do ...\r\n

  2. What's the difference between dependencies, devDependencies and peerDependencies in npm package.json file?

    tags: node.js, npm

    1108 votes, 7 answers and 262451 views

    \r\n This documentation answers my question very poorly. I didn't understand those explanations. Can someone say in simpler words? Maybe with examples if it's hard to choose simple words?\n\nEDIT also added ...\r\n

  3. How to make HTTP POST web request

    tags: c#, .net, post, httpwebrequest, httprequest

    569 votes, 6 answers and 680377 views

    \r\n How can I make an HTTP request and send some data using the POST method?\nI can do GET request but have no idea how to make a POST.\r\n

  4. You have not concluded your merge (MERGE_HEAD exists)

    tags: git

    480 votes, 8 answers and 374871 views

    \r\n I made a branch called 'f' and did a checkout to master. When I tried the git pull command I got this message:\n\nYou have not concluded your merge (MERGE_HEAD exists).\nPlease, commit your changes ...\r\n

  5. Python join: why is it string.join(list) instead of list.join(string)?

    tags: python, string, list, join

    1180 votes, 8 answers and 834563 views

    \r\n This has always confused me. It seems like this would be nicer:\n\nmy_list = ["Hello", "world"]\nprint my_list.join("-")\n# Produce: "Hello-world"\r\nThan this:\n\nmy_list = ["Hello", "world"]\nprint "-".join(...\r\n

  6. Is List a subclass of List? Why aren't Java's generics implicitly polymorphic?

    tags: java, generics, inheritance, polymorphism

    505 votes, 13 answers and 75903 views

    \r\n I'm a bit confused about how Java generics handle inheritance / polymorphism.\n\nAssume the following hierarchy -\n\nAnimal (Parent)\n\nDog - Cat (Children)\n\nSo suppose I have a method doSomething(List<...\r\n

  7. How do I find my RSA key fingerprint?

    tags: ssh, rsa, ssh-keys

    531 votes, 12 answers and 338855 views

    \r\n I need to do the ssh key audit for GitHub, but I am not sure how do find my RSA key fingerprint. I originally followed a guide to do the set up on a ubuntu 10.04 box hosted by linode. \n\nWhat is the ...\r\n

  8. String concatenation: concat() vs “+” operator

    tags: java, string, concatenation

    359 votes, 11 answers and 670950 views

    \r\n Assuming String a and b:\n\na += b\na = a.concat(b)\r\nUnder the hood, are they the same thing?\n\nHere is concat decompiled as reference. I'd like to be able to decompile the + operator as well to see what ...\r\n

  9. What is the difference between ++i and i++?

    tags: c, for-loop, post-increment, pre-increment

    556 votes, 16 answers and 557522 views

    \r\n In C, what is the difference between using ++i and i++, and which should be used in the incrementation block of a for loop?\r\n

  10. Colors in JavaScript console

    tags: javascript, google-chrome, console

    483 votes, 12 answers and 151133 views

    \r\n Can Chrome's built-in JavaScript console display colors?\n\nI want errors in red, warnings in orange and console.log's in green. Is that possible?\r\n