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How many bytes in a JavaScript string?
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String values are not implementation dependent, according the ECMA-262 3rd Edition Specification, each character represents a single 16-bit unit of UTF-16 text:
4.3.16 String Value
A string value is a member of the type String and is a
finite ordered sequence of zero or
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Controlling number of decimal digits in print output in R
There is an option in R to get control over digit display. For example:
3 Answers
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Cancel/kill window.setTimeout() before it happens
I have a few places where I use the line below to clear out a status, for example. I have a few of these that hang out for 10 seconds or more and if the user gets clicking around the action can occur at incorrect time intervals.
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Map vs Object in JavaScript
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According to mozilla:
A Map object can iterate its elements in insertion order - a for..of loop will return an array of [key, value] for each iteration.
and
Objects are similar to Maps in that both let you set keys to ...
How to convert a string from uppercase to lowercase in Bash? [duplicate]
...LLO
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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Fastest way to check a string contain another substring in JavaScript?
I'm working with a performance issue on JavaScript. So I just want to ask: what is the fastest way to check whether a string contains another substring (I just need the boolean value)? Could you please suggest your idea and sample snippet code?
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How to exit from PostgreSQL command line utility: psql
What command or short key can I use to exit the PostgreSQL command line utility psql ?
9 Answers
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Incrementing a date in JavaScript
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Three options for you:
1. Using just JavaScript's Date object (no libraries):
My previous answer for #1 was wrong (it added 24 hours, failing to account for transitions to and from daylight saving time; Clever Human pointed out that it wo...
Inheriting class methods from modules / mixins in Ruby
... include adds instance methods, extend adds class methods. This is how it works. I don't see inconsistency, only unmet expectations :)
– Sergio Tulentsev
May 21 '12 at 21:49
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Why do people use __(double underscore) so much in C++
... look through some open source C++ code and notice a lot of double under scores where used in the code, mainly at the start of variable names.
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