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Convert column classes in data.table
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Raising Matt Dowle's comment to Geneorama's answer (https://stackoverflow.com/a/20808945/4241780) to make it more obvious (as encouraged), you can use for(...)set(...).
library(data.table)
DT = data.table(a = LETTERS[c(3L,1:3)], b = 4:7, c = letters[1:4])
DT1 <- copy(DT)...
What is the length of the access_token in Facebook OAuth2?
...tion and updated our new access token docs to include a note about sizes:
https://developers.facebook.com/docs/facebook-login/access-tokens/
Sorry for the confusion.
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How SID is different from Service name in Oracle tnsnames.ora
...hat is a SID and Service name
please look into oracle's documentation at https://docs.oracle.com/cd/B19306_01/network.102/b14212/concepts.htm
In case if the above link is not accessable in future, At the time time of writing this answer, the above link will direct you to, "Database Service and Da...
Verifying signed git commits?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Using 'starts with' selector on individual class names
...
you can find a bunch of other cool variations of the jQuery selector here
https://api.jquery.com/category/selectors/
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Keyboard shortcut to change font size in Eclipse?
...riginal question was posted, but for future reference:
check this project, https://github.com/gkorland/Eclipse-Fonts
I have used it, and it's very simple and efficient.
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Can Google Chrome open local links?
...plorer seems to have taken it's place and provides similar functionality:
https://chrome.google.com/webstore/detail/local-explorer-file-manag/eokekhgpaakbkfkmjjcbffibkencdfkl/reviews?hl=en
It's basically a chrome plugin that replaces file:// links with localexplorer:// links, combined with an inst...
Mongoose populate after save
..._creator', function(err) {
console.log(book._creator);
});
see more at: https://github.com/LearnBoost/mongoose/wiki/3.6-Release-Notes#population
But this way you would still query for the user again.
A little trick to accomplish it without extra queries would be:
book = book.toObject();
book._...
How to access the correct `this` inside a callback?
...chnique often used in event handlers (especially in closures).
Reference : https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/this
function MyConstructor(data, transport) {
this.data = data;
var self = this;
transport.on('data', function () {
alert(self.d...
How to install plugins to Sublime Text 2 editor?
...ay would be to install the Package Control Plugin by wbond.
Just go here: https://sublime.wbond.net/installation
and follow the install instructions.
Once you are done you can use the Ctrl + Shift + P shortcut in Sublime, type in install and press enter, then search for emmet.
EDIT: You can now ...