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How to replace part of string by position?
... extra cost by working within a pre-allocated section of memory and moving chars round within it.
– redcalx
Apr 17 '18 at 15:52
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Generate random 5 characters string
I want to create exact 5 random characters string with least possibility of getting duplicated. What would be the best way to do it? Thanks.
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Does Java have buffer overflows?
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Since Java Strings are based on char arrays and Java automatically checks array bounds, buffer overflows are only possible in unusual scenarios:
If you call native code via JNI
In the JVM itself (usually written in C++)
The interpreter or JIT compiler doe...
How to find out what character key is pressed?
I would like to find out what character key is pressed in a cross-browser compatible way in pure Javascript.
8 Answers
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Remove Last Comma from a string
...cript, how can I remove the last comma, but only if the comma is the last character or if there is only white space after the comma? This is my code.
I got a working fiddle . But it has a bug.
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How to read lines of a file in Ruby
... to Linux standard "\n" before parsing the lines.
To support the "\r" EOL character along with the regular "\n", and "\r\n" from Windows, here's what I would do:
line_num=0
text=File.open('xxx.txt').read
text.gsub!(/\r\n?/, "\n")
text.each_line do |line|
print "#{line_num += 1} #{line}"
end
Of...
Does C# have an equivalent to JavaScript's encodeURIComponent()?
...). The point of encoding/escaping is that you're conveying that a reserved character should be passed through without its usual meaning (e.g. that ? identifies the query, or & separates query parameters). This requires knowledge that UrlEncode does not and cannot have.
– Br...
Delete empty lines using sed
...\s*$ will match all "empty" lines, empty here means, the line contains no chars, or the line contains only empty strings (E.g. spaces). All matched lines will be removed by sed, with the d command.
– Kent
Feb 26 '17 at 19:41
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How can I format a String number to have commas and round?
...as well merge this into a BigInteger type of class that handles compressed char[] arrays for math computations.
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How can I render inline JavaScript with Jade / Pug?
...ersion 7.0
The docs says you should use a script tag now, followed by a . char and no preceding space.
Example:
script.
if (usingJade)
console.log('you are awesome')
else
console.log('use jade')
will be compiled to
<script>
if (usingJade)
console.log('you are awesome')
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