大约有 26,000 项符合查询结果（耗时：0.0460秒） [XML]
Find the similarity metric between two strings
...mmend checking out the whole difflib doc docs.python.org/2/library/difflib.html there is a get_close_matches built in, although i found sorted(... key=lambda x: difflib.SequenceMatcher(None, x, search).ratio(), ...) more reliable, with custom sorted(... .get_matching_blocks())[-1] > min_match che...
Get table column names in MySQL?
...ally a shortcut for SHOW COLUMNS (dev.mysql.com/doc/refman/5.0/en/describe.html)
– svens
Oct 6 '09 at 16:45
11
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Convert blob to base64
...ase 64 image and you have a blob url. Now the answer that will work on all html 5 browsers is:
Do:
var fileInput = document.getElementById('myFileInputTag');
var preview = document.getElementById('myImgTag');
fileInput.addEventListener('change', function (e) {
var url = URL.createObjec...
Bootstrap select dropdown list placeholder
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dropdown or select doesn't have a placeholder because HTML doesn't support it but it's possible to create same effect so it looks the same as other inputs placeholder
$('select').change(function() {
if ($(this).children('option:first-child').is(':selected')) {
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Grep for literal strings
I'm after a grep-type tool to search for purely literal strings. I'm looking for the occurrence of a line of a log file, as part of a line in a seperate log file. The search text can contain all sorts of regex special characters, e.g., []().*^$-\ .
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Pseudo-terminal will not be allocated because stdin is not a terminal
I am trying to write a shell script that creates some directories on a remote server and then uses scp to copy files from my local machine onto the remote. Here's what I have so far:
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What is the performance of Objects/Arrays in JavaScript? (specifically for Google V8)
Performance associated with Arrays and Objects in JavaScript (especially Google V8) would be very interesting to document. I find no comprehensive article on this topic anywhere on the Internet.
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How to extract a string using JavaScript Regex?
I'm trying to extract a substring from a file with JavaScript Regex. Here is a slice from the file :
5 Answers
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Circle line-segment collision detection algorithm?
I have a line from A to B and a circle positioned at C with the radius R.
27 Answers
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Active Record - Find records which were created_at before today
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Using ActiveRecord the standard way:
MyModel.where("created_at < ?", 2.days.ago)
Using the underlying Arel interface:
MyModel.where(MyModel.arel_table[:created_at].lt(2.days.ago))
Using a thin layer over Arel:
MyModel.where(MyModel[:created_at] < 2.d...