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Pass correct “this” context to setTimeout callback?
How do I pass context into setTimeout ? I want to call this.tip.destroy() if this.options.destroyOnHide after 1000 ms. How can I do that?
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How useful/important is REST HATEOAS ( maturity level 3)?
...stakingly sniffed web traffic, read HTML pages, etc. to find what links to call when and with what payloads.
And as soon as Amazon changed their internal processes and URL structure, those hard coded clients failed -- because the links broke.
Yet, the casual web surfers were able to shop all day l...
Java generics T vs Object
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The difference here is that in the first, we specify that the caller must pass an Object instance (any class), and it will get back another Object (any class, not necessarily of the same type).
In the second, the type returned will be the same type as that given when the class was defi...
How do I use Node.js Crypto to create a HMAC-SHA1 hash?
...in to the stream
hmac.end(); // can't read from the stream until you call end()
hash = hmac.read().toString('hex'); // read out hmac digest
console.log("Method 1: ", hash);
// Method 2 - Using update and digest:
hmac = crypto.createHmac(algorithm, secret);
hmac.update(text);
hash = hmac.di...
How does database indexing work? [closed]
... by the database to find the rows with the name ‘Abc’. This is what is called a full table scan
How a database index can help performance
The whole point of having an index is to speed
Install dependencies globally and locally using package.json
... in your path.
For example:
npm i --save-dev mocha # Install test runner locally
npm i --save-dev babel # Install current babel locally
Then in package.json:
// devDependencies has mocha and babel now
"scripts": {
"test": "mocha",
"build": "babel -d lib src",
"prepublish": "babel -d lib src"...
Swift Programming: getter/setter in stored property
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Works like a charm! Beware it won't be called when setting the property in init()
– Christoph
Jun 1 '16 at 20:58
add a comment
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Why does ContentResolver.requestSync not trigger a sync?
...en I trigger it from the Dev Tools Sync Tester application, however when I call ContentResolver.requestSync(account, authority, bundle) from my ContentProvider, my sync is never triggered.
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Python locale error: unsupported locale setting
...n't have to use the dpkg command. After all, if the problem is occurring locally, then real solution would be to add the first two commands to your startup applications.
– RolandiXor
Aug 1 '16 at 20:32
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How to use base class's constructors and assignment operator in C++?
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You can explicitly call constructors and assignment operators:
class Base {
//...
public:
Base(const Base&) { /*...*/ }
Base& operator=(const Base&) { /*...*/ }
};
class Derived : public Base
{
int additional_;
public:...