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How to create a private class method?
...fine private instance methods, you call private on the instance's class to set the default visibility for subsequently defined methods to private... and hence it makes perfect sense to define private class methods by calling private on the class's class, ie. its metaclass.
Other mainstream, self-pr...
Add a property to a JavaScript object using a variable as the name?
I'm pulling items out of the DOM with jQuery and want to set a property on an object using the id of the DOM element.
13...
Does using “new” on a struct allocate it on the heap or stack?
...ot actually necessary to allocate the memory. The only purpose would be to set the field values according to whatever is in the constructor. If the constructor is not called, then all the fields will get their default values (0 or null).
Similarly for structs allocated on the stack, except that C# ...
iOS: Modal ViewController with transparent background
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Yes it works but ONLY if you set this on the higher ViewController of your view hierarchy. (eg. a NavigationController or the instance of your slide menu view controller for example).
– iGranDav
Jun 4 '14 at 13:41
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Graphviz: How to go from .dot to a graph?
...et zgrviewer.
Zgrviewer requires java (probably 1.5+). You might have to set the paths to the Graphviz binaries in Zgrviewer's preferences.
File -> Open -> Open with dot -> SVG pipeline (standard) ...
Pick your .dot file.
You can zoom in, export, all kinds of fun stuff.
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Which Radio button in the group is checked?
...n use SingleOrDefault() (If I'm not using tri-state buttons, then I always set one button "IsChecked" as a default selection.)
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How do I set a variable to the output of a command in Bash?
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Some Bash tricks I use to set variables from commands
Sorry, there is a loong answer, but there is more than one solution, shorter or quicker, more or less system friendly...
3rd Edit: 2020-09-05: About {fdname}<> syntax under bash See at top of...
pretty-print JSON using JavaScript
...tively in JSON.stringify(). The third argument enables pretty printing and sets the spacing to use:
var str = JSON.stringify(obj, null, 2); // spacing level = 2
If you need syntax highlighting, you might use some regex magic like so:
function syntaxHighlight(json) {
if (typeof json != 'strin...
Keep ignored files out of git status
...that this file is still in the git cache. To solve this problem needs to reset git cache.
Reset git cache. This removes everything from the index.
git rm -r --cached .
Add all files again:
git add .
Commit:
git commit -m ".gitignore was fixed."
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How do I use shell variables in an awk script?
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awk '{print a,b,$0}' a="$var1" b="$var2" file
In this way we can also set different Field Separator FS for each file.
awk 'some code' FS=',' file1.txt FS=';' file2.ext
Variable after the code block will not work for the BEGIN block:
echo "input data" | awk 'BEGIN {print var}' var="${varia...