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Is it possible to create a “weak reference” in javascript?
...rk In Progress. Details below.
Proposal
Proposal in now in Stage 3 which means that it has complete specification and that further refinement will require feedback from implementations and users.
The WeakRef proposal encompasses two major new pieces of functionality:
Creating weak references to...
Creating a segue programmatically
... runtime that creates them for you. You can normally call performSegueWithIdentifier: in your view controller's code, but this relies on having a segue already set up in the storyboard to reference.
What I think you are asking though is how you can create a method in your common view controller (b...
Use different Python version with virtualenv
...yvenv or python3 -m venv ... do NOT install the python-config script. This means that even after activating your Python3 environment the system-wide python-config will be invoked with confusing consequences. See this bug report from 2011 github.com/pypa/virtualenv/issues/169 and my question stackove...
How to determine if object is in array [duplicate]
... Remember that objects in JS are passed by reference. This means that two objects that have the same properties with the same values are not the same object. It also means that an object can actually exist in multiple arrays simultaneously. Example: jsfiddle.net/7B7dQ/33
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A potentially dangerous Request.Form value was detected from the client
...s because they cross into a different sub-language where they have special meaning. When you write a string to HTML, you should encode characters that have special meaning in HTML, using Server.HtmlEncode. If you pass a string to a dynamic SQL statement, you should encode different characters (or be...
Consistency of hashCode() on a Java string
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@JonSkeet I mean, in this case we may perhaps write our own code to generate our own hash, to grant portability. Is it?
– Felype
Jun 19 '13 at 16:16
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How to set transform origin in SVG
...l 15 '11 at 23:16
Peter CollingridgePeter Collingridge
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difference between fork and branch on github
...g is copied to your PC. It’s not quite the same as a Git clone. If you mean to ask “what’s copied when I clone a project?”, see the manual for git-clone(1).
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CORS - What is the motivation behind introducing preflight requests?
...sible before CORS due to the Same Origin Policy). Using preflight requests means that servers must opt-in (by responding properly to the preflight) to the new, potentially dangerous types of request that CORS makes possible.
That's the meaning of this part of the specification: "To protect resource...
How to find out what type of a Mat object is with Mat::type() in OpenCV
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What does the C(X) mean?
– alanwsx
May 8 '17 at 2:39
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