Using the variables into your example you can do this $i = 0; while ($i <= 3) { $varName=”var”.$i; if ($$varName > $var) { echo $$varName; } $i++; } But that is no right way to iterate over an array. There exists a million other ways to iterate over a bunch of variables and print … Read more
You can pass a relative or absolute path in any folder to and command, including touch (although the folder must exist): touch folder/sub.file.txt cd – switches to the folder you were last in (like a “Back” button) . means the current directory .. means the parent directory 2 solved About basic commands in bash (cp, … Read more
Replaces the “#” symbol with the corresponding digit if one is present; otherwise, no digit appears in the result string. Note that no digit appears in the result string if the corresponding digit in the input string is a non-significant 0. For example, 0003 (“####”) -> 3. Source So in your case you have a … Read more
This is actually quite simple, despite the convoluted solutions others have offered: Map<String, List<String>> map = placements.stream() .collect(groupingBy(Placement::getFutureLinkId, mapping(Placement::getId, toList()))); 1 solved Convert a Collection to Map using java 8 streams [closed]
A RegExp solution would use positive lookaheads (?=pattern) to make sure the sequence is in the correct part of the String You need to match 1 or 2 \d (digits) where It is followed by zero or more groups of 2 digits (?:\d{2})* Which is followed by a group of 3 digits and the end … Read more
Python’s list probably already has everything you want. If you want some additional functionality like limiting max number of objects you should subclass it or wrap around it with another class. 1 solved Implementing stack in python by using lists as stacks [closed]
XML::Simple is abysmal, especially for generating XML. You said the format should be the following: <keys> <key1><value1></value1></key1> […] </keys> That format doesn’t make much sense. The solution below produces XML in the following format: <elements> <element><key>key1</key><value>value1</value></element> […] </elements> Solution: use XML::Writer qw( ); open(my $fh, ‘>’, $qfn) or die(“Can’t create \”$qfn\”: $!\n”); my $writer = … Read more
var milliseconds = new Date().getTime(); //Get milliseconds var date = new Date(milliseconds); // Create date from milliseconds console.log(date.toString()); //Log: Fri Feb 05 2016 12:41:18 GMT+0200 (EET) // Let’s create futureDate, 5days after now … var millisecondsInDay = 8.64e+7; // Milliseconds per day var futureDate = new Date(milliseconds + 5*millisecondsInDay); console.log(futureDate.toString()); //Log: Wed Feb 10 2016 … Read more
The error you see is a JS error, which means that either there’s a problem with your JS code (perhaps some other part of the front end code you’re not showing us is flawed). Alternatively, the PHP value is causing problems. The way to easily insert PHP values in JS is through JSON: var tmp … Read more
Check these out in that order 🙂 Natural Language Tool Kit [NLTK] main page(It is in Python),Building a machine learning class around NLTK And Making an actual Application out of it. This should give you a great foundation for building NLP applications(provided your NLP fundamentals are strong) solved Machine understand natural language – nlp [closed]
You will need to learn a few key languages in order to start working on a program like this. PHP: you need a server side language to skim the site Javascript: For the input on the users side HTML: to implement the javascript Once you learn the basics, search stackoverflow for specific questions relating to … Read more
I’m going to guess you already have code for reading each of these files, and just need to parse out the values and organize them. The design part is coming up with a key that is unique for each start,end pair, but not hard to work with. Since start and end are numbers, this should … Read more
The JavaDoc for String.substring() states: [throws] IndexOutOfBoundsException – if beginIndex is negative or larger than the length of this String object. Since your beginIndex is equal to the length of the string it is a valid value and substring() returns an empty string. 3 solved What will be the output of String.substring(String.length)?
In python, when you import a library, it is expected to be utilized in the code blocks. Hence, as it obviously states, you may have imported these but have not used all of them. Besides that being the obvious warning, your imports should have been import numpy as np NOT bumpy. And remove the unnecessary … Read more
Probably best to do this as a single piece of SQL:- UPDATE stock a INNER JOIN order b ON a.part = b.part SET a.available = a.available – b.qty WHERE b.invoice` = ‘$order’ Watch out that you don’t just rerun this multiple times without some way of checking that an order hasn’t already been used to … Read more