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How can I get a collection of keys in a JavaScript dictionary? [duplicate]
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174
Use Object.keys() or shim it in older browsers...
const keys = Object.keys(driversCounter);
I...
What are bitwise shift (bit-shift) operators and how do they work?
...ular shifts. Shifting this value to the left by one position (3,758,096,384 << 1):
11100000 00000000 00000000 00000000
results in 3,221,225,472:
11000000 00000000 00000000 00000000
The digit that gets shifted "off the end" is lost. It does not wrap around.
Logical right shift (>>>...
Android 4.1: How to check notifications are disabled for the application?
Android 4.1 offers the user a check box to disable notifications for a specific application.
6 Answers
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How to check if a string in Python is in ASCII?
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194
def is_ascii(s):
return all(ord(c) < 128 for c in s)
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How to convert a string from uppercase to lowercase in Bash? [duplicate]
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If you are using bash 4 you can use the following approach:
x="HELLO"
echo $x # HELLO
y=${x,,}
echo $y # hello
z=${y^^}
echo $z # HELLO
Use only one , or ^ to make the first letter lowercase or uppercase.
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How to verify multiple method calls with different params
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answered Dec 14 '11 at 14:10
BradBrad
13.4k99 gold badges5252 silver badges6969 bronze badges
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Is there anyway to exclude artifacts inherited from a parent POM?
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49
Some ideas:
Maybe you could simply not inherit from the parent in that case (and declare a de...
Maximum length of the textual representation of an IPv6 address?
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45 characters.
You might expect an address to be
0000:0000:0000:0000:0000:0000:0000:0000
8 * 4 + 7 = 39
8 groups of 4 digits with 7 : between them.
But if you have an IPv4-mapped IPv6 address, the last two groups ca...
Import regular CSS file in SCSS file?
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DaveAlden
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answered Feb 4 '12 at 21:10
Stephen FuhryStephen Fuhry
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