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Optional Parameters in Go?

...ety of methods with the same name but different signatures was occasionally useful but that it could also be confusing and fragile in practice. Matching only by name and requiring consistency in the types was a major simplifying decision in Go's type system. ...
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How can I trigger a JavaScript event click

...link" onclick="javascript:Test('Test');">Google Chrome</a> and call the .click() method in your JavaScript code via a for loop: var link = document.getElementById('my-link'); for(var i = 0; i < 50; i++) link.click(); ...
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Practical non-image based CAPTCHA approaches?

...quite a good idea and is exactly the same as doing it in JavaScript. Good Call. @AviD: I'm aware that this method is prone to direct attacks as I've mentioned on my blog. However, it will defend against your average spam bot which blindly submits rubbish to any form it can find. ...
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DropDownList in MVC 4 with Razor

... Esraa_92 1,54911 gold badge1414 silver badges4040 bronze badges answered Apr 19 '14 at 17:09 Gabriel SimasGabriel S...
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E11000 duplicate key error index in mongodb mongoose

... null value. In other words, a sparse index is ok with multiple documents all having null values. sparse indexes From comments: Your error says that the key is named mydb.users.$email_1 which makes me suspect that you have an index on both users.email and users.local.email (The former being old an...
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How can I delete a service in Windows?

I have a couple old services that I want to completely uninstall. How can I do this? 13 Answers ...
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How do I invert BooleanToVisibilityConverter?

... Steve MitchamSteve Mitcham 4,93311 gold badge2525 silver badges5353 bronze badges add a comme...
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How to validate an email address in PHP

...($email, FILTER_VALIDATE_EMAIL)) { // invalid emailaddress } Additionally you can check whether the domain defines an MX record: if (!checkdnsrr($domain, 'MX')) { // domain is not valid } But this still doesn't guarantee that the mail exists. The only way to find that out is by sending ...
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Decode HTML entities in Python string?

...p 3, but it contains HTML entities which Beautiful Soup 3 doesn't automatically decode for me: 6 Answers ...
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Resizing UITableView to fit content

... Actually I found the answer myself. I just create a new CGRect for the tableView.frame with the height of table.contentSize.height That sets the height of the UITableView to the height of its content. Since the code modifies th...