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How to swap two variables in JavaScript
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Here's a one-liner to swap the values of two variables.
Given variables a and b:
b = [a, a = b][0];
Demonstration below:
var a=1,
b=2,
output=document.getElementById('output');
output.innerHTML="<p>Original: "+a+...
Unable to evaluate expression because the code is optimized or a native frame is on top of the call
I am getting the error:
12 Answers
12
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How to change the name of the active scheme in Xcode?
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This is in the Xcode documentation available from the "Help" menu. Choose "Help" > "Xcode Help", then enter "rename scheme" to find it. Here are the steps:
Choose "Edit Scheme" from the "Product" menu.
Click on the "Manage Schem...
How to detect pressing Enter on keyboard using jQuery?
I would like to detect whether the user has pressed Enter using jQuery.
18 Answers
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Set default CRAN mirror permanent in R
How can I set a specific CRAN mirror permanently in R?
1 Answer
1
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Way to read first few lines for pandas dataframe
Is there a built-in way to use read_csv to read only the first n lines of a file without knowing the length of the lines ahead of time? I have a large file that takes a long time to read, and occasionally only want to use the first, say, 20 lines to get a sample of it (and prefer not to load the...
How do I include a path to libraries in g++
I am trying to include the path to extra libraries in my makefile, but I can't figure out how to get the compiler to use that path. so far I have:
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How do I get the localhost name in PowerShell?
How do I get the localhost (machine) name in PowerShell? I am using PowerShell 1.0.
7 Answers
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Redirect to an external URL from controller action in Spring MVC
I have noticed the following code is redirecting the User to a URL inside the project,
9 Answers
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Get selected element's outer HTML
I'm trying to get the HTML of a selected object with jQuery. I am aware of the .html() function; the issue is that I need the HTML including the selected object (a table row in this case, where .html() only returns the cells inside the row).
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