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Reset select2 value and show placeholder
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edited Jan 24 '17 at 15:20
Hakan Fıstık
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Javascript: negative lookbehind equivalent?
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Lookbehind Assertions got accepted into the ECMAScript specification in 2018.
Positive lookbehind usage:
console.log(
"$9.99 €8.47".match(/(?<=\$)\d+(\.\d*)?/) // Matches "9.99"
);
Negative lookbehind usage:
console.log(
"$9.99 €8.47".match(/(?<!\$)\d+(?:\.\d*)/)...
Where can I find the TypeScript version installed in Visual Studio?
... Visual Studio Command Prompt
Type tsc -v and hit Enter
Visual Studio 2017 versions 15.3 and above bind the TypeScript version to individual projects, as this answer points out:
Right click on the project node in Solution Explorer
Click Properties
Go to the TypeScript Build tab
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Different ways of clearing lists
..., 3]
>>> b = a
>>> del a[:] # equivalent to del a[0:len(a)]
>>> print(a)
[]
>>> print(b)
[]
>>> a is b
True
You could also do:
>>> a[:] = []
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Android ADB device offline, can't issue commands
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140
I just got the same problem today after my Nexus 7 and Galaxy Nexus were updated to Android 4.2....
How can I extend typed Arrays in Swift?
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10 Answers
10
Active
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cannot load such file — bundler/setup (LoadError)
I'm setting Rails 4 application with Ruby 2.0, but I'm getting "Web application could not be started" and get this trace:
1...
Grouping functions (tapply, by, aggregate) and the *apply family
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10 Answers
10
Active
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ggplot with 2 y axes on each side and different scales
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109
Sometimes a client wants two y scales. Giving them the "flawed" speech is often pointless. But ...
How do I get the width and height of a HTML5 canvas?
... and height attributes are not present in the canvas element, the default 300x150 size will be returned. To dynamically get the correct width and height use the following code:
const canvasW = canvas.getBoundingClientRect().width;
const canvasH = canvas.getBoundingClientRect().height;
Or using th...