What exactly do the three “special locales” called “en_US_POSIX”, “en_001” and “en_150” mean?

There are quite a few English-language locales on my computer system (Windows 10). Most of them look like this, and make sense: en_CA en_DE en_GB en_IL en_PK en_US … But there are three special ones, which don’t seem to correspond to a clear physical area: en_001 en_150 en_US_POSIX By doing some digging, I have extracted…

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getting old value from change event

I am using html form, which is tagged as date. I want to check the old value after .change is called my code: $(‘#date’).change(function(event) { event.preventDefault(); $(‘#list_data’).html(”); $(‘#btndownload’).hide(); $(‘#btngenerate’).hide(); val = $(this).val(); //want to change it to old/previous value if(val || val !=””){ console.log(“this value: ” +val); $(‘#btnview’).show(); } else{ $(‘#btnview’).hide(); console.log(“closed”); } }); any…

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