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Node.js client for a socket.io server
...ion (socket){
console.log('connection');
socket.on('CH01', function (from, msg) {
console.log('MSG', from, ' saying ', msg);
});
});
http.listen(3000, function () {
console.log('listening on *:3000');
});
Run :
Open 2 console and run node server.js and node client.js
...
AngularJS with Django - Conflicting template tags
...n, there are cases where I want to be able to bootstrap my views with data from the server so this would get messy fast. Think things like the user's username, it's not going to change so I'll just write it into the template at the server but there may be pieces around it that I'll write in with an...
Checking if a string is empty or null in Java [duplicate]
...
@DavidS If you remove str == null from code and str variable is 'null', then it will throw 'NullPointerException'.
– Alfaz Jikani
Jan 17 at 13:18
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How do I run msbuild from the command line using Windows SDK 7.1?
... 4.0 support on our CI server. I've installed .NET 4.0, and the .NET tools from the Windows 7.1 SDK.
7 Answers
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How do I check the difference, in seconds, between two dates?
... @Nickpick the value is not always positive. e.g. the following is -60: from datetime import datetime; (datetime(2019, 1, 1, 0, 0) - datetime(2019, 1, 1, 0, 1)).total_seconds()
– JDiMatteo
Jan 2 '19 at 2:06
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Nullable type as a generic parameter possible?
... original code – remove the where constraint, and change the last return from return null to return default(T). This way you can return whatever type you want.
By the way, you can avoid the use of is by changing your if statement to if (columnValue != DBNull.Value).
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What is “String args[]”? parameter in main method Java
...- though it's best to follow convention. You also might see String... args from time to time, which is equivalent.
– vikingsteve
Jun 20 '13 at 6:40
71
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Javascript Object push() function
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I assume that REALLY you get object from server and want to get object on output
Object.keys(data).map(k=> data[k].Status=='Invalid' && delete data[k])
var data = { 5: { "ID": "0", "Status": "Valid" } }; // some OBJECT from server response
...
Make an existing Git branch track a remote branch?
... the above commands will cause local branch foo to track remote branch foo from remote upstream.
The old (1.7.x) syntax is deprecated in favor of the new (1.8+) syntax. The new syntax is intended to be more intuitive and easier to remember.
Defining an upstream branch will fail when run against new...
HTML5 dragleave fired when hovering a child element
...ragEnterTarget is set, I ignore further dragenter events, because they are from children. In all dragleave events I check dragEnterTarget === event.target. If this is false the event will be ignored as it was fired by a child. If this is true I reset dragEnterTarget to undefined.
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