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How to cut an entire line in vim and paste it?
... command in vim, but I need something which will delete an entire line and it should allow me to paste the same line somewhere else.
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What does -1 mean in numpy reshape?
A numpy matrix can be reshaped into a vector using reshape function with parameter -1. But I don't know what -1 means here.
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How to do something before on submit? [closed]
i have a form which has a button that submits the form. I need to do something before submits happen. I tried doing onClick on that button but it happens after the submit.
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How to convert unix timestamp to calendar date moment.js
I have a unix timestamp, and I'm trying to convert it into a calendar date such as MM/DD/YYYY .
So far, I have this:
11 A...
Find all files with name containing string
...e. I have seen locate and find commands that can find files beginning with something first_word* or ending with something *.jpg .
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Convert column classes in data.table
...ng data.table: How do I convert column classes? Here is a simple example: With data.frame I don't have a problem converting it, with data.table I just don't know how:
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Real mouse position in canvas [duplicate]
I'm trying to draw with the mouse over a HTML5 canvas, but the only way that it seems to work well is if the canvas is in the position 0,0 (upper left corner) if I change the canvas position, for some reason it doesn't draw like it should. Here is my code.
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Allow user to set up an SSH tunnel, but nothing else
...I want to restrict this user as much as possible. (Authentication will be with public/private keypair).
10 Answers
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Are JavaScript strings immutable? Do I need a “string builder” in JavaScript?
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They are immutable. You cannot change a character within a string with something like var myString = "abbdef"; myString[2] = 'c'. The string manipulation methods such as trim, slice return new strings.
In the same way, if you have two references to the same string, modifying...
Dependency Injection vs Factory Pattern
...Injection, we can solve using the factory pattern as well. Looks like when it comes to usage/design the difference between dependency injection and factory is blurred or thin.
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