You want Object#method: ———————————————————- Object#method obj.method(sym) => method ———————————————————————— Looks up the named method as a receiver in obj, returning a Method object (or raising NameError). The Method object acts as a closure in obj’s object instance, so instance variables and the value of self remain available. class Demo def initialize(n) @iv = n end … Read more
Your code seems to be missing some significant chunks, so let’s add in the missing bits (I’ll make some assumptions here) and fix things as we go. Add missing boilerplate. #!/usr/bin/perl use strict; use warnings; use JSON; my $name = “test”; my $type = “A”; my $data = “1.1.1.1”; my $ttl = 84600; Make the … Read more
The => operator in perl is basically the same as comma. The only difference is that if there’s an unquoted word on the left, it’s treated like a quoted word. So you could have written Martin => 28 which would be the same as ‘Martin’, 28. You can make a hash from any even-length list, … Read more
Hash includes Enumerable, so you can use the many methods on that module to traverse the hash. It also has this handy method: hash.has_value?(value_you_seek) To find the key associated with that value: hash.key(value_you_seek) This API documentation for Ruby (1.9.2) should be helpful.
A little more compact and optimized code def crc(fileName): prev = 0 for eachLine in open(fileName,”rb”): prev = zlib.crc32(eachLine, prev) return “%X”%(prev & 0xFFFFFFFF) PS2: Old PS is deprecated – therefore deleted -, because of the suggestion in the comment. Thank you. I don’t get, how I missed this, but it was really good.
You use the TransformBlock and TransformFinalBlock methods to process the data in chunks. // Init MD5 md5 = MD5.Create(); int offset = 0; // For each block: offset += md5.TransformBlock(block, 0, block.Length, block, 0); // For last block: md5.TransformFinalBlock(block, 0, block.Length); // Get the has code byte[] hash = md5.Hash; Note: It works (at least … Read more
scrollIntoView did the best job when all other methods failed! document.getElementById(‘top’).scrollIntoView(true); Where ‘top’ is the id of the html tag you want to go.
Hellow there 😀 it’s quite a function. If you are a scholar, you would like to check this article: https://www.movable-type.co.uk/scripts/sha256.html Pure javascript: var sha256 = function sha256(ascii) { function rightRotate(value, amount) { return (value>>>amount) | (value<<(32 – amount)); }; var mathPow = Math.pow; var maxWord = mathPow(2, 32); var lengthProperty = ‘length’ var i, j; … Read more
If your data are unique, you should create a UNIQUE index on them. This implies no additional overhead and affects optimizer’s decisions in certain cases so that it can choose a better algorithm. In SQL Server and in PostgreSQL, for instance, if you sort on a UNIQUE key, the optimizer ignores the ORDER BY clauses … Read more