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Difference between `set`, `setq`, and `setf` in Common Lisp?
...namic ones. And
there was no SETQ or SETF, just the SET function.
What is now written as:
(setf (symbol-value '*foo*) 42)
was written as:
(set (quote *foo*) 42)
which was eventually abbreviavated to SETQ (SET Quoted):
(setq *foo* 42)
Then lexical variables happened, and SETQ came to be use...
In Java, how do I convert a byte array to a string of hex digits while keeping leading zeros? [dupli
... No external dependencies, nice & short. Plus, if you know you have 16 bytes / 32 hex digits, your solution condenses to an easy one-liner. Cool!
– Roboprog
Apr 6 '13 at 1:06
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Is REST DELETE really idempotent?
...LETE http://example.com/account/123 then the effect is that account 123 is now deleted from the server. That is the one and only effect, the one and only change to the state of the server. Now lets say you do the same DELETE http://example.com/account/123 request again, the server will respond diff...
Amazon products API - Looking for basic overview and information
...web service has undergone two name changes in recent history: it was also known as ECS and AAWS.
The signature process you're referring to is the same HMAC signature that all of the other AWS services use for authentication. All that's required to sign your requests to the Product Advertising API is...
Path to MSBuild
... docs.microsoft.com/en-us/visualstudio/msbuild/… "MSBuild is now installed in a folder under each version of Visual Studio. For example, C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild" and "ToolsVersion values are no longer set in the registry"
...
Smooth scrolling when clicking an anchor link
...
Update April 2018: There's now a native way to do this:
document.querySelectorAll('a[href^="#"]').forEach(anchor => {
anchor.addEventListener('click', function (e) {
e.preventDefault();
document.querySelector(this.getAttribute(...
How to get HTML 5 input type=“date” working in Firefox and/or IE 10
... Glad to hear this. Should be on by default imo. But this is good to know.
– Solomon Closson
Dec 22 '17 at 4:24
I...
How to avoid overflow in expr. A * B - C * D
...c * d
x / (a * d) = (a * b - c * d) / (a * d)
x / (a * d) = b / d - c / a
now, the integer/mod stuff:
x / (a * d) = (b / d + ( b % d ) / d) - (c / a + ( c % a ) / a )
x / (a * d) = (b / d - c / a) - ( ( c % a ) / a - ( b % d ) / d)
x = (b / d - c / a) * a * d - ( ( c % a ) * d - ( b % d ) * a)
...
Find out which remote branch a local branch is tracking
...
BTW, the newest versions of git (1.8.5.x) also now show the upstream branch during git status and git status -sb -- so once you upgrade to 1.8.5.x, this question (and answer) is irrelevant.
– jdsumsion
Dec 17 '13 at 19:32
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How is the fork/join framework better than a thread pool?
...problem or makes the solution more efficient from what we've had for years now.
11 Answers
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