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How to make a function wait until a callback has been called using node.js
... be "returned" in the normal sense, but rather send the routine that will handle the resulting value:
function(query, callback) {
myApi.exec('SomeCommand', function(response) {
// other stuff here...
// bla bla..
callback(response); // this will "return" your value to the original cal...
Google Chromecast sender error if Chromecast extension is not installed or using incognito
... least, avoid requesting the extension scipt if the browser is not Chrome. And I suspect it could be possible to suppress the error even if it is Chrome, but haven't tried anything.)
If you are a user annoyed by these console messages, you can switch to Chrome if not using it already. Within Chrome...
Parsing a CSV file using NodeJS
With nodejs I want to parse a .csv file of 10000 records and do some operation on each row. I tried using http://www.adaltas.com/projects/node-csv . I couldnt get this to pause at each row. This just reads through all the 10000 records. I need to do the following:
...
Can I replace groups in Java regex?
I have this code, and I want to know, if I can replace only groups (not all pattern) in Java regex.
Code:
7 Answers
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Getting reference to the top-most view/window in iOS application
...IAlertView. When I init the manager that listens for NSNotification events and adds views in response, I need to get a reference to the top-most view in the application. This is what I have at the moment:
...
Validate that a string is a positive integer
...ng(n) === str && n >= 0;
}
or if you want to allow whitespace and leading zeros:
function isNormalInteger(str) {
str = str.trim();
if (!str) {
return false;
}
str = str.replace(/^0+/, "") || "0";
var n = Math.floor(Number(str));
return n !== Infinity &am...
Interface type check with Typescript
...ou could instead add a discriminator. The below is the most basic example, and requires you to manage your own discriminators... you'd need to get deeper into the patterns to ensure you avoid duplicate discriminators.
interface A{
discriminator: 'I-AM-A';
member:string;
}
function instance...
Is calculating an MD5 hash less CPU intensive than SHA family functions?
Is calculating an MD5 hash less CPU intensive than SHA-1 or SHA-2 on "standard" laptop x86 hardware? I'm interested in general information, not specific to a certain chip.
...
Inline labels in Matplotlib
...below). This can be very fiddly, because I have to specify coordinates by hand, and, if I re-format the plot, I probably have to reposition the labels. Is there a way to automatically generate labels on curves in Matplotlib? Bonus points for being able to orient the text at an angle corresponding to...
log messages appearing twice with Python Logging
I'm using Python logging, and for some reason, all of my messages are appearing twice.
8 Answers
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