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How to check if a specific key is present in a hash or not?
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answered Dec 24 '10 at 22:09
sepp2ksepp2k
331k4747 gold badges635635 silver badges653653 bronze badges
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How to RSYNC a single file?
...owLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\...
How to implement a many-to-many relationship in PostgreSQL?
... this case.
I added serial columns as surrogate primary keys. In Postgres 10 or later consider an IDENTITY column instead. See:
Safely rename tables using serial primary key columns
Auto increment table column
https://www.2ndquadrant.com/en/blog/postgresql-10-identity-columns/
I highly recommend ...
What's the best way to detect a 'touch screen' device using JavaScript?
...{ / fine, don't */}
– Anatoly G
Feb 10 '12 at 18:27
7
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How to unset a JavaScript variable?
...nvironment are not normally deletable - the process detailed in ECMAScript 10.5 explains this in detail, but suffice it to say that unless your code is executed in an eval context (which most browser-based development consoles use), then variables declared with var cannot be deleted.
2. Without Usin...
Do something if screen width is less than 960 px
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10 Answers
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In C#, can a class inherit from another class and an interface?
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edited Dec 19 '13 at 23:10
Zain Rizvi
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answ...
Is right click a Javascript event?
... The right-click/context menu is also accessible via the keyboard (shift+F10 or context menu key on Windows and some Linux). In this situation, the event that you're looking for is oncontextmenu:
window.oncontextmenu = function ()
{
showCustomMenu();
return false; // cancel default me...
CSS last-child(-1)
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answered Feb 10 '12 at 12:41
BoltClock♦BoltClock
601k141141 gold badges12621262 silver badges12641264 bronze badges
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RSpec: how to test if a method was called?
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102
In the new rspec expect syntax this would be:
expect(subject).to receive(:bar).with("an argum...