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Detect Chrome extension first run / update
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Updated answer to reflect v3 of manifest:
Chromium now has a chrome.runtime set of APIs, which allow you to fetch the version of the extension.
To get the current version:
chrome.runtime.getManifest().version
To listen when the extension has been first installed, when th...
Can dplyr package be used for conditional mutating?
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dplyr now has a function case_when that offers a vectorised if. The syntax is a little strange compared to mosaic:::derivedFactor as you cannot access variables in the standard dplyr way, and need to declare the mode of NA, but it ...
What do linkers do?
I've always wondered. I know that compilers convert the code you write into binaries but what do linkers do? They've always been a mystery to me.
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Android Studio inline compiler showing red errors, but compilation with gradle works fine
...I didn't even need to invalidate caches. Let's hope A.S. will build faster now !
– Someone Somewhere
Jun 14 '18 at 14:35
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show 5 more comme...
Caching a jquery ajax response in javascript/browser
...ve to bother with all the mess in the $.ajax() as I use $.ajaxPrefilter(). Now just setting {cache: true} is enough to handle the cache correctly :
var localCache = {
/**
* timeout for cache in millis
* @type {number}
*/
timeout: 30000,
/**
* @type {{_: number, data...
Why malloc+memset is slower than calloc?
It's known that calloc is different than malloc in that it initializes the memory allocated. With calloc , the memory is set to zero. With malloc , the memory is not cleared.
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git - skipping specific commits when merging
I've been using Git for about a year now and think it's fantastic, but I've just started on a second version of the project and started a new branch for it. I'm struggling a little with the best way to handle things going forward.
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Get pandas.read_csv to read empty values as empty string instead of nan
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Documentation for read_csv now offers both na_values (list or dict indexed by columns) and keep_default_na (bool). The keep_default_na value indicates whether pandas' default NA values should be replaced or appended to. The OP's code doesn't work curre...
Storyboard - refer to ViewController in AppDelegate
...roject and specify the name of the new class in the IB identity inspector. Now how am I going to refer to this ViewController programmatically from the AppDelegate? I've made a variable with the relevant class and turned it into an IBOutlet property, but I don't see any way of being able to refer to...
What does “Content-type: application/json; charset=utf-8” really mean?
...e content itself, i.e. you can't necessarily just look at the content and know what to do with it. That's what HTTP headers are for, they tell the recipient what kind of content they're (supposedly) dealing with.
Content-type: application/json; charset=utf-8 designates the content to be in JSON for...