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How to extend an existing JavaScript array with another array, without creating a new array
...ethod can take multiple arguments. You can use the spread operator to pass all the elements of the second array as arguments to .push:
>>> a.push(...b)
If your browser does not support ECMAScript 6, you can use .apply instead:
>>> a.push.apply(a, b)
Or perhaps, if you think i...
Not showing placeholder for input type=“date” field
...
98
If you use mvp's method but add the onblur event to change it back to a text field so the place...
Why are functions and methods in PHP case-insensitive?
...ent little CGI programs written in C before I got sick of it, and combined all of them into a single C library. I then wrote a very simple parser that would pick tags out of HTML files and replace them with the output of the corresponding functions in the C library.
The simple parser slowly grew to ...
Fetch frame count with ffmpeg
...default=nokey=1:noprint_wrappers=1 input.mp4
This is a fast method.
Not all formats (such as Matroska) will report the number of frames resulting in the output of N/A. See the other methods listed below.
ffprobe: Count the number of frames
ffprobe -v error -count_frames -select_streams v:0 -sh...
Why do all browsers' user agents start with “Mozilla/”?
All popular browsers' user agent strings, even Internet Explorer's, start with Mozilla/ . Why is this the case?
6 Answers
...
How to make Sequelize use singular table names
I have an model called User but Sequelize looks for the table USERS whenever I am trying to save in the DB. Does anyone know how to set Sequelize to use singular table names? Thanks.
...
What is the purpose of a self executing function in javascript?
...
It's all about variable scoping. Variables declared in the self executing function are, by default, only available to code within the self executing function. This allows code to be written without concern of how variables are nam...
Is there a difference between “throw” and “throw ex”?
...w ex resets the stack trace Coming from Method 1 and propogates it to the caller(Main)
throw ex;
}
}
private static void Method1()
{
try
{
throw new Exception("Inside Method1");
}
catch (Exception)
{
throw;
}
}
...
When you exit a C application, is the malloc-ed memory automatically freed?
...
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 issue isn't just that your code looks bad. You may decide you w...
提升速度：XP注册表与驱动优化 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...优化方案
1、启动加速
虽然Windows XP的启动速度比Windows 98有了很大提高，但还是有加速的余力。到微软站点下载Bootvis.exe文件，启动它，依次选择菜单里面的Trace→Optimize System，这时候系统会提示是否重新启动，选择启动，重...