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How can I listen to the form submit event in javascript?
...ive submit event (prevent the form from being submitted), use .preventDefault() in your callback function,
document.querySelector("#myForm").addEventListener("submit", function(e){
if(!isValid){
e.preventDefault(); //stop form from submitting
}
});
Listening to the submit eve...
Access props inside quotes in React JSX
...ession inside curly braces as the entire attribute value, so this works:
<img className="image" src={"images/" + this.props.image} />
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How to have a default option in Angular.js select box
...
You can simply use ng-init like this
<select ng-init="somethingHere = options[0]"
ng-model="somethingHere"
ng-options="option.name for option in options">
</select>
...
What is the difference between MacVim and regular Vim?
...etter way to use MacVim's CLI executable in your shell is to move the mvim script bundled with MacVim somewhere in your $PATH and use this command:
$ mvim -v
EDIT: Yes, Terminal.app now supports 256 colors. So if you don't need iTerm2's advanced features you can safely use the default terminal em...
iterating over and removing from a map [duplicate]
...s of Java 8 you could do this as follows:
map.entrySet().removeIf(e -> <boolean expression>);
Oracle Docs: entrySet()
The set is backed by the map, so changes to the map are reflected in the set, and vice-versa
s...
.htaccess not working apache
...nvalid line, such as "INVALID LINE HERE", in your .htaccess file, will result in a 500 Server Error when you point your browser at the directory containing that file. If it doesn't, then you don't have AllowOverride configured correctly.
...
RestSharp simple complete example [closed]
... might help if you had a full example of what wasn't working. It's difficult to get context on how the client was set up if you don't provide the code.
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Indent multiple lines quickly in vi
... in the help, but I can't figure out how to navigate it. How do I indent multiple lines quickly in vi?
32 Answers
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How do I set a ViewModel on a window in XAML using DataContext property?
... is useful for when you want to write isolated test cases.
In App.xaml:
<Application
x:Class="BuildAssistantUI.App"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:BuildAssistantU...
How to use System.Net.HttpClient to post a complex type?
...
The generic HttpRequestMessage<T> has been removed. This :
new HttpRequestMessage<Widget>(widget)
will no longer work.
Instead, from this post, the ASP.NET team has included some new calls to support this functionality:
HttpClient.PostAsJs...