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Check whether an array is empty [duplicate]

... There are two elements in array and this definitely doesn't mean that array is empty. As a quick workaround you can do following: $errors = array_filter($errors); if (!empty($errors)) { } array_filter() function's default behavior will remove all values...
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Python module for converting PDF to text [closed]

...n Activestate which uses pypdf but the text generated had no space between and was of no use. 13 Answers ...
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Duplicate headers received from server

...that the filename contained commas. Do a replace on commas to remove them and you should be fine. My function to make a valid filename is below. public static string MakeValidFileName(string name) { string invalidChars = Regex.Escape(new string(System.IO.Path.GetInvalidFileNameCha...
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Ternary Operators in JavaScript Without an “Else”

...ested expressions if that is fitting) each part of the expression (after ? and after : ) should return a value without side effects (the expression x = true returns true as all expressions return the last value, but also changes x without x having any effect on the returned value) In short - the '...
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unbound method f() must be called with fibo_ instance as first argument (got classobj instance inste

In Python, I'm trying to run a method in a class and I get an error: 8 Answers 8 ...
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How to create a new object instance from a Type

...l. There are a lot of overloads for passing parameters to the constructor and such. Check out the documentation at: http://msdn.microsoft.com/en-us/library/system.activator.createinstance.aspx or (new path) https://docs.microsoft.com/en-us/dotnet/api/system.activator.createinstance Her...
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node.js: read a text file into an array. (Each line an item in the array.)

...al data into an array then wouldn't you also be able to fit it in a string and split it, as has been suggested? In any case if you would like to process the file one line at a time you can also try something like this: var fs = require('fs'); function readLines(input, func) { var remaining = '';...
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How to use relative/absolute paths in css URLs?

I have a production and development server. The problem is the directory structure. 3 Answers ...
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Bring element to front using CSS

...ng images to front using CSS . I've already tried setting z-index to 1000 and position to relative, but it still fails. 4 ...
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Best way to display decimal without trailing zeroes

... And you can always throw an exorbitant* number of # symbols at the format. *not scientific – Anthony Pegram Jun 23 '10 at 20:43 ...