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How to show particular image as thumbnail while implementing share on Facebook?
... that facebook does do some caching with regard to this information, so in order for changes to take effect your page will have t be scraped as stated in the documentation :
Editing Meta Tags
You can update the attributes of your page by updating your page's
tags. Note that og:title an...
count (non-blank) lines-of-code in bash
... right, which means I usually start with cat, then action, action, action, etc. Clearly, the end result is the same.
– Michael Cramer
Sep 24 '08 at 14:06
32
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Defining a variable with or without export
... process. You would use this for (say) loop variables, temporary variables etc.
It's important to note that exporting a variable doesn't make it available to parent processes. That is, specifying and exporting a variable in a spawned process doesn't make it available in the process that launched it...
Batch file: Find if substring is in string (not in a file)
...o match.
( What a pain! At only 3 letters that means 9 different tests in order to accomplish the check! )
In addition, many times it is preferable to match command output, a variable in a loop, or the value of a pointer variable in your batch/CMD which is not as straight forward.
For these reaso...
Writing a list to a file with Python
...mple because you want an output text file that can be easily read, edited, etc, with one item per line. Hardly a rare desire;-).
– Alex Martelli
May 23 '09 at 14:40
1
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invalid_grant trying to get oAuth token from google
...st users but for some users I still get invalid_grant, invalid_credentials etc. for no particular reasons.
– Allen King
Dec 29 '15 at 19:32
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Rails: convert UTC DateTime to another time zone
..."undefined method 'in_time_zone'". Are there rails classes that I need in order to get this to work?
– Drew Johnson
Apr 23 '10 at 2:59
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Use URI builder in Android or create URL with variables
...
I was confused in what order url are made, because in course its only variables not the complete url, that we have to make
– blackHawk
Mar 6 '17 at 16:12
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When should I use Write-Error vs. Throw? Terminating vs. non-terminating errors
...
In advanced functions, you must use $PSCmdlet.ThrowTerminatingError() in order to generate a statement-terminating error.
Note that, by contrast, the Throw keyword generates a script-terminating error that aborts the entire script (technically: the current thread).
Handling a statement-terminatin...
Where are static variables stored in C and C++?
...program execution passes through its
definition. The order of initialization of
global variables across translation units is not
defined, and special care is needed to manage
dependencies between global objects (inc...