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How to make type=“number” to positive numbers only
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@Bh00shan — If you type something that is invalid, it will get picked up when the form's submit button is clicked and the user will be prompted to fix it.
– Quentin
Jul 16 at 10:46
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Convert a byte array to integer in Java and vice versa
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Is it too expensive if the byte array contains only 1 or 2 integer? Not sure about the cost constructing a ByteBuffer.
– Meow Cat 2012
Mar 2 '19 at 3:01
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Pass all variables from one shell script to another?
...ariables like arrays easily, but also means that the other script could modify variables in the source shell.
UPDATE:
To use export to set an environment variable, you can either use an existing variable:
A=10
# ...
export A
This ought to work in both bash and sh. bash also allows it to be co...
Changing every value in a hash in Ruby
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If you want the actual strings themselves to mutate in place (possibly and desirably affecting other references to the same string objects):
# Two ways to achieve the same result (any Ruby version)
my_hash.each{ |_,str| str....
How do I create a new line in Javascript?
...than one:
document.write("\n\n\n"); // 3 new lines! My oh my!
However, if this is rendering to HTML, you will want to use the HTML tag for a newline:
document.write("<br>");
The string Hello\n\nTest in your source will look like this:
Hello!
Test
The string Hello<br><br>...
Pretty printing XML with javascript
...that a string result is expected, as opposed to an HTML-formatted result.
If this is so, the simplest way to achieve this is to process the XML document with the identity transformation and with an <xsl:output indent="yes"/> instruction:
<xsl:stylesheet version="1.0"
xmlns:xsl="http://w...
How to generate a random alpha-numeric string?
...ric string. In my situation it would be used as a unique session/key identifier that would "likely" be unique over 500K+ generation (my needs don't really require anything much more sophisticated).
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How do I execute any command editing its file (argument) “in place” using bash?
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This is an answer. I was actually wondering if there is a generic solution to this problem. For example if I want to find all UNIQ lines in a file "in place", I can't do -o
– jm.
Sep 28 '08 at 21:45
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Where is array's length property defined?
...in the array whereas myArray.length ([]) provides the "capacity". That is, if for myArray = new int[10];, it returns 10. It is not the number of objects you've put in the array.
– wmorrison365
Feb 16 '12 at 13:15
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What is the difference between Θ(n) and O(n)?
...g because nobody knows how to type this symbol, or does it mean something different?
9 Answers
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