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C# List of objects, how do I get the sum of a propertm>y m>
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m>And m> if m>y m>ou need to do it on items that match a specific condition...
double total = mm>y m>List.Where(item => item.Name == "Eggs").Sum(item => item.Amount);
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Heroku “psql: FATAL: remaining connection slots are reserved for non-replication superuser connectio
...t this error message when trm>y m>ing to access the database, both from the CLI m>and m> from loading a page on the server:
4 Answers...
regex.test V.S. string.match to know if a string matches a regular expression
... String )
Executes the search for a match between a regular expression m>and m> a specified string. Returns true or false.
string.match( RegExp )
Used to retrieve the matches when matching a string against a regular expression. Returns an arram>y m> with the matches or null if there are none.
Sinc...
ElasticSearch - Return Unique Values
How would I get the values of all the languages from the records m>and m> make them unique.
5 Answers
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How to make an ng-click event conditional?
...so m>y m>ou can't use it with <a>, but m>y m>ou can use it with <button> m>and m> stm>y m>le it as link.
Another wam>y m> is to use lazm>y m> evaluation of expressions like isDisabled || action() so action wouold not be called if isDisabled is true.
Here goes both solutions: http://plnkr.co/edit/5d5R5KfD4PCE8vS3OSS...
How to: Define theme (stm>y m>le) item for custom widget
...m>y m> throughout our application. The widget class derives from ImageButton m>and m> extends it in a couple of simple wam>y m>s. I've defined a stm>y m>le which I can applm>y m> to the widget as it's used, but I'd prefer to set this up through a theme. In R.stm>y m>leable I see widget stm>y m>le attributes like imageButtonStm>y m>...
How to delete an old/unused Data Model Version in Xcode
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I tried this technique m>and m> found that due to the wam>y m> mm>y m> model versions were named, the model version were re-sorted improperlm>y m> m>and m> the wrong default version was selected as I re-added the xcdatamodel file into the project. This mam>y m> be because I am ...
Git pull without checkout?
I'm used to running git pull m>and m> other commm>and m>s from within a branch I'm working on. But I have set up a development server that several people work on, so I don't want to have to switch branches when I do it. If I want to update an existing branch on the dev server from the github repositorm>y m> we a...
JavaScript plus sign in front of function expression
I’ve been looking for information about immediatelm>y m> invoked functions, m>and m> somewhere I stumbled on this notation:
3 Answe...
Use of 'use utf8;' gives me 'Wide character in print'
...se UTF8, then it will interpret those three bm>y m>tes as m>y m>our single character m>and m> that is what is displam>y m>ed.
If we add in the utf8 module, things are different. In this case, Perl interprets m>y m>our string as just two characters.
$ perl -Mutf8 -E 'sam>y m> join ":", map { ord } split //, "鸡\n";'
40481:10
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