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What is the difference between google tag manager and google analytics?
...in job is really just generating the reports and statistics about your website, like how many people saw your website yesterday, what web browser they used, which pages were the most popular, etc. The only way it can know this stuff is if you put a "tag" on all of your pages. The tag is the javas...
Best practices/performance: mixing StringBuilder.append with String.concat
... to understand what the best practice is and why for concatenating string literals and variables for different cases. For instance, if I have code like this
...
Implementation difference between Aggregation and Composition in Java
I'm aware of the conceptual differences between Aggregation and Composition. Can someone tell me the implementation difference in Java between them with examples?
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XAMPP - Port 80 in use by “Unable to open process” with PID 4! 12
... problem for two days. I'm new to this kind of thing so I would appreciate it if someone could tell me how to fix it.
27 An...
HashMap get/put complexity
...e are used to saying that HashMap get/put operations are O(1). However it depends on the hash implementation. The default object hash is actually the internal address in the JVM heap. Are we sure it is good enough to claim that the get/put are O(1) ?
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What are the differences between Abstract Factory and Factory design patterns?
...rence was when I learnt them.
Because the factory method is just a method, it can be overridden in a subclass, hence the second half of your quote:
... the Factory Method pattern uses
inheritance and relies on a subclass
to handle the desired object
instantiation.
The quote assumes that an object ...
Formatting a number with exactly two decimals in JavaScript
...rns a string.
IMPORTANT: Note that toFixed does not round 90% of the time, it will return the rounded value, but for many cases, it doesn't work.
For instance:
2.005.toFixed(2) === "2.00"
UPDATE:
Nowadays, you can use the Intl.NumberFormat constructor. It's part of the ECMAScript Internationalizatio...
Node.js spawn child process and get terminal output live
... so on and so forth. Now I thought I would be able to tackle this problem with this model.
8 Answers
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What is the difference between a weak reference and an unowned reference?
...ng the referred object).
But why two keywords? This distinction has to do with the fact that Optional types are built-in the Swift language. Long story short about them: optional types offer memory safety (this works beautifully with Swift's constructor rules - which are strict in order to provide t...
Should I use `import os.path` or `import os`?
...tion , os.path is a module. Thus, what is the preferred way of importing it?
6 Answers
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