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How to make code wait while calling asynchronous calls like Ajax [duplicate]

... Use callbacks. Something like this should work based on your sample code. function someFunc() { callAjaxfunc(function() { console.log('Pass2'); }); } function callAjaxfunc(callback) { //All ajax calls called here ...
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Why doesn't .NET/C# optimize for tail-call recursion?

...en was responsible for the machine code. The CLR itself does support tail call optimization, but the language-specific compiler must know how to generate the relevant opcode and the JIT must be willing to respect it. F#'s fsc will generate the relevant opcodes (though for a simple recursion it may ...
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How to add an Access-Control-Allow-Origin header

...als: "true" header. Instead, they want you to allow their origin specifically. If you still want to allow all origins, you can do some simple Apache magic to get it to work (make sure you have mod_headers enabled): Header set Access-Control-Allow-Origin "%{HTTP_ORIGIN}e" env=HTTP_ORIGIN Brows...
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What does @hide mean in the Android source code?

...e); } return PackageManager.PERMISSION_DENIED; } However, we can call it by reflection: Class c; c = Class.forName("android.app.ActivityManager"); Method m = c.getMethod("checkUidPermission", new Class[] {String.class, int.class}); Object o = m.invoke(null, new Object[]{"android.permissi...
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Generate .pem file used to set up Apple Push Notifications

...tribution section, then click "Continue" button. Step 3: Select the App ID you want to use for your BYO app (How to Create An App ID), then click "Continue" to go to next step. Step 4: Follow the steps "About Creating a Certificate Signing Request (CSR)" to create a Certificate Signing Request...
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Focus Input Box On Load

...load? You can just add the autofocus attribute to the input. <input id="myinputbox" type="text" autofocus> However, this might not be supported in all browsers, so we can use javascript. window.onload = function() { var input = document.getElementById("myinputbox").focus(); } 2) How...
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What are the best practices for using a GUID as a primary key, specifically regarding performance?

I have an application that uses GUID as the Primary Key in almost all tables and I have read that there are issues about performance when using GUID as Primary Key. Honestly, I haven't seen any problem, but I'm about to start a new application and I still want to use the GUIDs as the Primary Keys, b...
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How can I find the version of the Fedora I use?

... answered Feb 12 '09 at 9:31 David GrantDavid Grant 12.9k33 gold badges5151 silver badges6161 bronze badges ...
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Build and Version Numbering for Java Projects (ant, cvs, hudson)

... edited Feb 18 '16 at 12:22 Guido 40.2k2424 gold badges111111 silver badges166166 bronze badges answered Jan 11 '10 at 4:56 ...
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How do I directly modify a Google Chrome Extension File? (.CRX)

...er of the extension you wish to modify. ( Named according to the extension ID, to find the ID of the extension, go to chrome://extensions/). Once copied, you have to remove the _metadata folder. From chrome://extensions in Developer mode select Load unpacked extension... and select your copied ext...