unix philosophy includes leftpad
June 3, 2024 at 12:19 AM
unix philosophy includes leftpad
leftpad was 10 years ago 😳
March 20, 2026 at 8:27 PM
leftpad was 10 years ago 😳
LEFTPAD AT SCALE
1. LLM-generated code tries to run code from online software packages. Which is normal but
2. The packages don’t exist. Which would normally cause an error but
3. Nefarious people have made malware under the package names that LLMs make up most often. So
4. Now the LLM code points to malware.
2. The packages don’t exist. Which would normally cause an error but
3. Nefarious people have made malware under the package names that LLMs make up most often. So
4. Now the LLM code points to malware.
LLMs hallucinating nonexistent software packages with plausible names leads to a new malware vulnerability: "slopsquatting."
April 13, 2025 at 12:34 AM
LEFTPAD AT SCALE
>> leftpad
>> lefterpad
>> leftestpad
>> lefterpad
>> leftestpad
June 11, 2026 at 4:03 PM
>> leftpad
>> lefterpad
>> leftestpad
>> lefterpad
>> leftestpad
10 years ago
module.exports = leftpad;
function leftpad (str, len, ch) {
str = String(str);
var i = -1;
ch || (ch = ' ');
len = len - str.length;
while (++i < len) {
str = ch + str;
}
return str;
}
module.exports = leftpad;
function leftpad (str, len, ch) {
str = String(str);
var i = -1;
ch || (ch = ' ');
len = len - str.length;
while (++i < len) {
str = ch + str;
}
return str;
}
March 20, 2026 at 4:51 PM
10 years ago
module.exports = leftpad;
function leftpad (str, len, ch) {
str = String(str);
var i = -1;
ch || (ch = ' ');
len = len - str.length;
while (++i < len) {
str = ch + str;
}
return str;
}
module.exports = leftpad;
function leftpad (str, len, ch) {
str = String(str);
var i = -1;
ch || (ch = ' ');
len = len - str.length;
while (++i < len) {
str = ch + str;
}
return str;
}
Jev-Leftpad | Discussion
GitHub - f/jev-leftpad: Left-pad strings with TypeSafe AI's Jev. For reasons.
Left-pad strings with TypeSafe AI's Jev. For reasons. - f/jev-leftpad
github.com
September 21, 2026 at 10:00 AM
Jev-Leftpad | Discussion
my husband just informed me over breakfast that leftpad is 10 YEARS OLD NOW and i died, facedown in my eggs
10 years ago
module.exports = leftpad;
function leftpad (str, len, ch) {
str = String(str);
var i = -1;
ch || (ch = ' ');
len = len - str.length;
while (++i < len) {
str = ch + str;
}
return str;
}
module.exports = leftpad;
function leftpad (str, len, ch) {
str = String(str);
var i = -1;
ch || (ch = ' ');
len = len - str.length;
while (++i < len) {
str = ch + str;
}
return str;
}
March 20, 2026 at 5:19 PM
my husband just informed me over breakfast that leftpad is 10 YEARS OLD NOW and i died, facedown in my eggs
Genius! Do we label them things like libxz, leftpad, etc?
January 2, 2025 at 6:23 PM
Genius! Do we label them things like libxz, leftpad, etc?
that was leftpad for me
September 5, 2025 at 12:40 AM
that was leftpad for me
waiter! waiter! another 300 copies of leftpad please!
November 4, 2025 at 9:08 AM
waiter! waiter! another 300 copies of leftpad please!
Last Sunday was the 10th anniversary of LeftPad.
I hope you celebrated.
I hope you celebrated.
March 24, 2026 at 9:22 PM
Last Sunday was the 10th anniversary of LeftPad.
I hope you celebrated.
I hope you celebrated.
Nobody gets why Lets Prove Leftpad is funny anymore
June 24, 2025 at 12:37 AM
Nobody gets why Lets Prove Leftpad is funny anymore
on the one hand the democratisation of software dev via agentic AI might lead to a hilarious pile of regrettable techdebt in 15 years
on the other hand, Claude in Her infinite wisdom and grace would simply have written a throwaway function to leftpad strings and tucked it away in a file somewhere
on the other hand, Claude in Her infinite wisdom and grace would simply have written a throwaway function to leftpad strings and tucked it away in a file somewhere
April 2, 2026 at 7:48 PM
on the one hand the democratisation of software dev via agentic AI might lead to a hilarious pile of regrettable techdebt in 15 years
on the other hand, Claude in Her infinite wisdom and grace would simply have written a throwaway function to leftpad strings and tucked it away in a file somewhere
on the other hand, Claude in Her infinite wisdom and grace would simply have written a throwaway function to leftpad strings and tucked it away in a file somewhere
Because github makes it trivial for your dependency author to take down their leftpad, whereas pypi kinda wants to keep deptrees actually working
April 20, 2026 at 4:05 PM
Because github makes it trivial for your dependency author to take down their leftpad, whereas pypi kinda wants to keep deptrees actually working
hell, look at the leftpad incident
April 13, 2025 at 7:58 AM
hell, look at the leftpad incident
this is leftPad all over again
we’ve lived in this world for a while, but it’s shit like this that serves as a landmark, “this is how it works now”
we’ve lived in this world for a while, but it’s shit like this that serves as a landmark, “this is how it works now”
Haha, this whole bun rewrite thing is- what the fuck do you mean *merged*?
May 14, 2026 at 5:32 PM
this is leftPad all over again
we’ve lived in this world for a while, but it’s shit like this that serves as a landmark, “this is how it works now”
we’ve lived in this world for a while, but it’s shit like this that serves as a landmark, “this is how it works now”
Jev-Leftpad
#HackerNews
<a href="https://github.com/f/jev-leftpad" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link" target="_blank" rel="noopener" data-link="bsky">https://github.com/f/jev-leftpad
#HackerNews
<a href="https://github.com/f/jev-leftpad" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link" target="_blank" rel="noopener" data-link="bsky">https://github.com/f/jev-leftpad
September 21, 2026 at 10:13 AM
Jev-Leftpad
#HackerNews
<a href="https://github.com/f/jev-leftpad" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link" target="_blank" rel="noopener" data-link="bsky">https://github.com/f/jev-leftpad
#HackerNews
<a href="https://github.com/f/jev-leftpad" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link" target="_blank" rel="noopener" data-link="bsky">https://github.com/f/jev-leftpad
September 21, 2026 at 3:17 PM
Jev-Leftpad
https://github.com/f/jev-leftpad
https://github.com/f/jev-leftpad
September 21, 2026 at 10:35 AM
Jev-Leftpad
https://github.com/f/jev-leftpad
https://github.com/f/jev-leftpad
September 21, 2026 at 10:00 AM
September 21, 2026 at 8:35 PM
September 21, 2026 at 3:53 PM
it does feel i'm invoking leftpad a little bit when i quickloaded the common lisp library "parse-float"
July 30, 2026 at 5:57 AM
it does feel i'm invoking leftpad a little bit when i quickloaded the common lisp library "parse-float"