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What is the proper way to test if a parameter is empty in a batch file?

...ayed expansion, as delayedExp. is always safe against any content. set "param1=%~1" setlocal EnableDelayedExpansion if "!param1!"=="" ( echo it is empty ) rem ... or use the DEFINED keyword now if defined param1 echo There is something The advantage of this is that dealing with param1 is absolu...
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Cannot set content-type to 'application/json' in jQuery.ajax

...that this is a problem because everything works fine when I don't pass any parameters and content-type is application/x-www-form-urlencoded. But I don't need POST request if I couldn't pass any parameters. – Vitalii Korsakov Mar 18 '12 at 17:03 ...
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Get the (last part of) current directory name in C#

... It's a params array, so .TrimEnd(Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar) works too. – Kyle Delaney Jul 16 '17 at 18:45 ...
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Android: Align button to bottom-right of screen using FrameLayout?

... If you want to try with java code. Here you go - final LayoutParams params = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT); yourView.setLayoutParams(params); params.gravity = Gravity.BOTTOM; // set gravity ...
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Reading Excel files from C#

...me exists in the Schema Table /// </summary> /// <param name="sheetName">Sheet name to be verified</param> /// <param name="dtSchema">schema table </param> private static bool CheckIfSheetNameExists(string sheetName, DataTable dtSchema) ...
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Is there a way to detect if a browser window is not currently active?

... /** Registers the handler to the event for the given object. @param obj the object which will raise the event @param evType the event type: click, keypress, mouseover, ... @param fn the event handler function @param isCapturing set the event mode (true = capturing event, fal...
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Passing two command parameters using a WPF binding

...separate properties bound from the view. That saves you having to pass any parameters at all to your commands. However, you could also multi-bind and use a converter to create the parameters: <Button Content="Zoom" Command="{Binding MyViewModel.ZoomCommand"> <Button.CommandParameter&g...
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Is there a case insensitive jQuery :contains selector?

... interested what do a and m[3] mean in Contains definition. KEY/LEGEND: Params made available by jQuery for use in the selector definitions: r = jQuery array of elements being scrutinised. (eg: r.length = Number of elements) i = index of element currently under scrutiny, within array r. a =...
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Best way to combine two or more byte arrays in C#

....Buffer.BlockCopy solution more generic like this: private byte[] Combine(params byte[][] arrays) { byte[] rv = new byte[arrays.Sum(a => a.Length)]; int offset = 0; foreach (byte[] array in arrays) { System.Buffer.BlockCopy(array, 0, rv, offset, array.Length); offset ...
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Passing a method as a parameter in Ruby

...od name to a callable symbol. You can store that result in a variable or a parameter and keep passing it to child functions like any other variable from then on... – user1115652 May 3 '14 at 10:42 ...