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Is there a performance gain in using single quotes vs double quotes in ruby?
...70000 0.000000 0.270000 ( 0.278146)
Note: I've updated this to make it work with newer Ruby versions, and cleaned up the header, and run the benchmark on a faster system.
This answer omits some key points. See especially these other answers concerning interpolation and the reason there is n...
A good solution for await in try/catch/finally?
...an async method in a catch block before throwing again the exception (with its stack trace) like this :
4 Answers
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How to set breakpoints in inline Javascript in Google Chrome?
...oogle Chrome, I see all kinds of features like Profiles, Timelines, and Audits, but basic functionality like being able to set breakpoints both in js files and within html and javascript code is missing! I tried to use the javascript console, which itself is buggy - for example, once it encounters a...
Test if object implements interface
...safe way. For example:
if ("" instanceof java.io.Serializable) {
// it's true
}
yields true. Since:
if (null instanceof AnyType) {
// never reached
}
yields false, the instanceof operator is null safe (the code you posted isn't).
instanceof is the built-in, compile-time safe al...
Share variables between files in Node.js?
...never a good thing (maybe an exception or two out there...). In this case, it looks like you really just want to export your "name" variable. E.g.,
// module.js
var name = "foobar";
// export it
exports.name = name;
Then, in main.js...
//main.js
// get a reference to your required module
var my...
Check empty string in Swift?
...
There is now the built in ability to detect empty string with .isEmpty:
if emptyString.isEmpty {
print("Nothing to see here")
}
Apple Pre-release documentation: "Strings and Characters".
...
String concatenation in Ruby
...
You can do that in several ways:
As you shown with << but that is not the usual way
With string interpolation
source = "#{ROOT_DIR}/#{project}/App.config"
with +
source = "#{ROOT_DIR}/" + project + "/App.config"
The second method seems to be more efficient in ...
When to use Amazon Cloudfront or S3
...
Amazon S3 is designed for large-capacity, low-cost file storage in one specific geographical region.* The storage and bandwidth costs are quite low.
Amazon CloudFront is a Content Delivery Network (CDN) which proxies and caches web data at edge locations as clo...
“Uncaught TypeError: Illegal invocation” in Chrome
When I use requestAnimationFrame to do some native supported animation with below code:
3 Answers
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Conceptually, how does replay work in a game?
...
I think your initial thought was correct. To create a replay, you store all input received from the user (along with the frame number at which it was received) along with the initial seeds of any random number generators. To replay the ga...