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Does JavaScript have a built in stringbuilder class?
...ke sure you chose an implementation, which uses array joins. Concatenating strings with the + or += operator are extremely slow on IE. This is especially true for IE6. On modern browsers += is usually just as fast as array joins.
When I have to do lots of string concatenations I usually fill an ar...
Remove duplicate lines without sorting [duplicate]
...e unique lines. This of course could end up being the whole file though if all the lines are unique.
– deltaray
Jul 11 '18 at 17:33
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show 1...
Replace input type=file by an image
...
This works really well for me:
.image-upload>input {
display: none;
}
<div class="image-upload">
<label for="file-input">
<img src="https://icon-library.net/images/upload-photo-icon/upload-photo-icon-21...
How to find the Git commit that introduced a string in any branch?
I want to be able to find a certain string which was introduced in any commit in
any branch, how can I do that? I found something (that I modified for Win32),
but git whatchanged doesn't seem to be looking into the different branches
(ignore the py3k chunk, it's just a msys/win line feed fix)
...
How to check if a variable is null or empty string or all whitespace in JavaScript?
... @Madbreaks the op stated "What I need is something like this C# method: String.IsNullOrWhiteSpace". That method treats tabs as whitespace.
– subsci
Sep 26 '14 at 22:09
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How to remove line breaks (no characters!) from the string?
...ines and carriage returns. The code is:
preg_replace( "/\r|\n/", "", $yourString );
Even though the \n characters are not appearing, if you are getting carriage returns there is an invisible character there. The preg replace should grab and fix those.
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How to access data/data folder in Android device?
...'backup my data'. The resulting 'backup.ab' file on your computer contains all application data in android backup format. Basically it's a compressed tar file. This page explains how you can use OpenSSL's zlib command to uncompress it.
You can use the adb restore backup.db command to restore the b...
How to grep Git commit diffs or contents for a certain word?
...it contents).
Note that -G by default accepts a regex, while -S accepts a string, but can be modified to accept regexes using the --pickaxe-regex.
To illustrate the difference between -S<regex> --pickaxe-regex and -G<regex>, consider a commit with the following diff in the same file...
Difference between null and empty (“”) Java String
What is the difference between null and the "" (empty string)?
22 Answers
22
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What's the difference if I put css file inside or ?
Normally css files are put inside <head></head> , what if I put it inside <body></body> , what difference will it make?
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