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Map over object preserving keys
...h Underscore
Underscore provides a function _.mapObject to map the values and preserve the keys.
_.mapObject({ one: 1, two: 2, three: 3 }, function (v) { return v * 3; });
// => { one: 3, two: 6, three: 9 }
DEMO
With Lodash
Lodash provides a function _.mapValues to map the values and pre...
convert_tz returns null
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Hi, when I run this command I got error like this : Warning: Unable to load '/usr/share/zoneinfo/iso3166.tab' as time zone. Skipping it. Warning: Unable to load '/usr/share/zoneinfo/zone.tab' as time zone. Skipping it.
– Ghansh...
Count occurrences of a char in a string using Bash
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I would use the following awk command:
string="text,text,text,text"
char=","
awk -F"${char}" '{print NF-1}' <<< "${string}"
I'm splitting the string by $char and print the number of resulting fields minus 1.
If your shell does not support the <...
Automatically import modules when entering the python or ipython interpreter
... documentation:
If this is the name of a readable file, the Python commands in that
file are executed before the first prompt is displayed in interactive
mode. The file is executed in the same namespace where interactive
commands are executed so that objects defined or imported in it can b...
Where does Vagrant download its .box files to?
What happens to the .box file after the following command is executed?
8 Answers
8
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How do I get the APK of an installed app without root access?
I'm trying to extract the APK file of an installed Android app WITHOUT root permissions.
11 Answers
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How to define Gradle's home in IDEA?
I am trying to import a Gradle project into IntelliJ, and when I get to the Gradle Home textbox, it is not automatically populated, nor will typing in the path of Gradle Home result in a valid location - I have the GRADLE_USER_HOME environment variable set (to what I think is!) the correct pat...
Stop “developer tools access needs to take control of another process for debugging to continue” ale
I recently upgraded to 10.7.3, and when I try to debug my iOS project in the simulator for the first time after logging in, I'm prompted with the following two alerts:
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split string only on first instance - java
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The limit parameter controls the number of times the pattern is applied and therefore affects the length of the resulting array. If the limit n is greater than zero then the pattern will be applied at most n - 1 times, the array's length will be no greater than n, and the array's last entry will...
How to combine multiple conditions to subset a data-frame using “OR”?
... the following syntax before with lot of success when I wanted to use the "AND" condition.
3 Answers
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