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How do I create a unique constraint that also allows nulls?
...dy found separately in other, properly defined columns. It should never be selected or used.
So, my story is that this is not a surrogate NULL, and I'm sticking to it! Since we don't actually want the non-NULL value for any purpose other than to trick the UNIQUE index to ignore NULLs, our use case ...
convert String to DateTime
...ctive_support extensions, but good luck figuring out which ones to require selectively)
– Matt Zukowski
Sep 30 '12 at 0:53
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Trying to load jquery into tampermonkey script
...Something like:
// @require http://code.jquery.com/jquery-3.4.1.min.js
(Selecting your desired version from the of list of available versions of jQuery)
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Draw multi-line text to Canvas
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You can get the metrics for a selected character, e.g. font.measure("Y")
– GregD
Apr 10 at 18:41
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Advances social tools app with cool UI - Koded Apps - Kodular Community
...2000;
const POLLING_INTERVAL = 50;
const splashSvgTemplate = document.querySelector(".splash-svg-template");
const splashTemplateClone = splashSvgTemplate.content.cloneNode(true);
const svgElement = splashTemplateClone.querySelector("svg");
const svgString = new XMLSerializer().serializeToString(svg...
Get specific object by id from array of objects in AngularJS
... };
// We filter the array by id, the result is an array
// so we select the element 0
single_object = $filter('filter')(foo.results, function (d) {return d.id === 2;})[0];
// If you want to see the result, just check the log
console.log(single_object);
}]);
Plunker: http://...
Matplotlib plots: removing axis, legends and white spaces
... embedded image in the plot). Solution: fig.axes[0], and in general all or selected axes.
– Ioannis Filippidis
Jun 6 '15 at 21:38
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Deleting multiple elements from a list
...; del a[0:3:2]
>>> a
[1, 3, 4]
This doesn't cover any arbitrary selection, of course, but it can certainly work for deleting any two items.
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What's the difference between CSS classes .foo.bar (without space) and .foo .bar (with space) [dupli
...nt, .symbol {}
Edit: By request the link to the documentation of the CSS selectors.
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require file as string
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The selected answer is deprecated and not recommended anymore.
NodeJS documentation suggests other approaches like:
loading modules via some other Node.js program
but it does not expand any more.
You can use a very simple libr...