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How do I check if file exists in jQuery or pure JavaScript?
...l, false);
http.send();
return http.status!=404;
}
Small changes and it could check for status HTTP status code 200 (success), instead.
EDIT 2: Since sync XMLHttpRequest is deprecated, you can add a utility method like this to do it async:
function executeIfFileExist(src, callback) {
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Moving decimal places over in a double
...Decimal.
The problem you have is that 0.1 is not an exact representation, and by performing the calculation twice, you are compounding that error.
However, 100 can be represented accurately, so try:
double x = 1234;
x /= 100;
System.out.println(x);
which prints:
12.34
This works because Doub...
Convert Bitmap to File
I understand that using BitmapFactory can convert a File to a Bitmap, but is there any way to convert a Bitmap image to a File?
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Vim Insert Mode on Mac OS X
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Great, thanks! I must admit, I'm both a vim newbie and a mac newbie so yeah, it was simple as that. Thanks!
– Tamas Czinege
Mar 17 '09 at 13:19
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What is the “-d” in “npm -d install”?
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It's a shortcut for --loglevel info
See the Shorthands and Other CLI Niceties section:
-d: --loglevel info
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C# generic list how to get the type of T? [duplicate]
I'm working on a reflection project, and now I'm stuck.
4 Answers
4
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character showing up in files. How to remove them?
I am doing compressing of JavaScript files and the compressor is complaining that my files have  character in them.
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Can I target all tags with a single selector?
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For those landing here from google, and wondering what a comma-separated list means in CSS, it's the first example OP gave. That is, h1, h2, h3 {}.
– bluesmonk
May 29 '19 at 17:47
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Read Excel File in Python
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A somewhat late answer, but with pandas it is possible to get directly a column of an excel file:
import pandas
import xlrd
df = pandas.read_excel('sample.xls')
#print the column names
print df.columns
#get the values for a given column
values = df['Arm_id']...
Creating an empty file in Ruby: “touch” equivalent?
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FileUtils.touch looks like what it does, and mirrors* the touch command:
require 'fileutils'
FileUtils.touch('file.txt')
* Unlike touch(1) you can't update mtime or atime alone. It's also missing a few other nice options.
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