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How can I make git ignore future revisions to a file?
I have created a default version of a file included in a git repository. It's important that when someone clones the repository, they get a copy of this file. However, I would like to set git so that it ignores changes to this file later. .gitignore works only on untracked files.
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How do I check if an object has a specific property in JavaScript?
...perty] or, even worse, x.key will give you completely misleading results.
It depends on what you're looking for. If you want to know if an object physically contains a property (and it is not coming from somewhere up on the prototype chain) then object.hasOwnProperty is the way to go. All modern br...
Will console.log reduce JavaScript execution performance?
...ugging feature console.log reduce JavaScript execution performance? Will it affect the speed of script execution in production environments?
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Choosing Java vs Python on Google App Engine
...especially support for Java bytecode regardless of the languages used to write that code. Which language will give better performance and more power? Please advise. Thank you!
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Failed to allocate memory: 8
...today, when I tried to run an app in NetBeans on a 2.3.3 Android platform, it shows me that:
20 Answers
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Regex to check whether a string contains only numbers [duplicate]
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var reg = /^\d+$/;
should do it. The original matches anything that consists of exactly one digit.
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What is the difference between JSF, Servlet and JSP?
...a Java view technology running on the server machine which allows you to write template text in client side languages (like HTML, CSS, JavaScript, ect.). JSP supports taglibs, which are backed by pieces of Java code that let you control the page flow or output dynamically. A well-known taglib is JST...
How to run a program without an operating system?
How do you run a program all by itself without an operating system running?
Can you create assembly programs that the computer can load and run at startup, e.g. boot the computer from a flash drive and it runs the program that is on the CPU?
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When you exit a C application, is the malloc-ed memory automatically freed?
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It depends on the operating system. The majority of modern (and all major) operating systems will free memory not freed by the program when it ends.
Relying on this is bad practice and it is better to free it explicitly. The...
Why is === faster than == in PHP?
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Because the equality operator == coerces, or converts, the data type temporarily to see if it’s equal to the other operand, whereas === (the identity operator) doesn’t need to do any converting whatsoever and thus less work is done, whic...