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Laravel Check If Related Model Exists
...method calls through to an Eloquent query Builder, which is set up to only select the related objects. That Builder in turn passes unknown method calls through to its underlying query Builder.
This means you can use the exists() or count() methods directly from a relation object:
$model->relati...
Live character count for EditText
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tried this, works great! should be selected as correct answer!
– Patrick Boos
Jan 3 '11 at 5:10
2
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Easy way to list node modules I have npm linked?
...r ls command
the -F option adds an '@' indicator for links
the sed command selects those links and removes the indicator
the xargs part passes previous output as arguments to npm ...
npm is invoked with
list or ls to list modules with versions
replace with ll to get details about each listed mod...
What is default color for text in textview?
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This looks like it will properly select the colour based on theme, and will update for instance, if the app is in night mode.
– Brill Pappin
Aug 26 '15 at 15:47
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Creating JSON on the fly with JObject
...item =
from p in posts
orderby p.Title
select new
{
title = p.Title,
description = p.Description,
link = p.Link,
category = p.Categories
}
}
});
Json.net documentation fo...
How to clear a chart from a canvas so that hover events cannot be triggered?
...lt;canvas id="results-graph"><canvas>');
canvas = document.querySelector('#results-graph');
ctx = canvas.getContext('2d');
ctx.canvas.width = $('#graph').width(); // resize to parent width
ctx.canvas.height = $('#graph').height(); // resize to parent height
var x = canvas.width/2;...
What is the difference between service, directive and module?
...n directives (because they don't start with "ng"): a, form, input, script, select, textarea. Under Angular, these all do more than normal!
Directives allow you to "componentize HTML". Directives are often better than ng-include. E.g., when you start writing lots of HTML with mainly data-binding,...
Statistics: combinations in Python
...i Sorry for the confusion. The page displays a 404 if javascript has been (selectively) disabled. I guess that's to discourage rogue AIs from incorporating archived Google Code Project sources quite so easily?
– SeldomNeedy
Feb 29 '16 at 2:20
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What's NSLocalizedString equivalent in Swift?
...ich make things really easy by just highlighting text, right-clicking, and selecting the menu item.
– Ethan Allen
May 11 at 0:14
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REST APIs: custom HTTP headers vs URL parameters
... true metadata about the request for custom headers.
HTTP has a very wide selection of headers that cover most everything you'll need. Where I've seen custom headers come up is in a system to system request operating on behalf of a user. The proxy system will validate the user and add "X-User: us...