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Keep only first n characters in a string?
...substring(0,8);
Which returns the string starting at the first character and finishing before the 9th character - i.e. 'Hiya how'.
substring documentation
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jquery, find next element by class
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And what if wanted to get an attribute from that HTMLObject returned? Like an $(obj).closest('tr').nextAll('.class')[0].attr('data-attribute');
– Dennis Braga
Sep 2 '14 at 16:37
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MySql - Way to update portion of a string?
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Use the LIKE operator to find the rows that you care about and update them using the REPLACE function.
For example:
UPDATE table_name SET field_name = REPLACE(field_name,'search','replace') WHERE field_name LIKE '%some_value%'
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Why does google.load cause my page to go blank?
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You just have to define a callback, and it will not clear the page (maybe the older versions of google.load() did, but apparently the new ones do not if used with callback). Here a simplified example when I'm loading the "google.charts" lib:
if(google) {
g...
String replacement in Objective-C
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I thought the point of having NSString and an NSMutableString subclass was because an instance of NSString is unchangeable. While--like any sane person, I'd rather have ducks than strings any day--the fact that you just overwrote the contents of str just blew my m...
How to remove an element slowly with jQuery?
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If you need to hide and then remove the element use the remove method inside the callback function of hide method.
This should work
$target.hide("slow", function(){ $(this).remove(); })
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What is tail call optimization?
... space as (fact 3). This is not the case with the non-tail-recursive fact, and as such large values may cause a stack overflow.
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How do I find the most recent git commit that modified a file?
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git log supports looking at the history of specific files (and directories), so you can call it like this:
git log my/file.c
If you really only want to list the one most recent commit, for example to use it in a script, use the -n 1 option:
git log -n 1 --pretty=format:%H -- my/f...
All but last element of Ruby array
...3]
or
a.take 3
or
a.first 3
or
a.pop
which will return the last and leave the array with everything before it
or make the computer work for its dinner:
a.reverse.drop(1).reverse
or
class Array
def clip n=1
take size - n
end
end
a # => [1, 2, 3, 4]
a.clip # =&g...
How would I skip optional arguments in a function call?
...ify everything up until that last parameter. Generally if you want to mix-and-match, you give them default values of '' or null, and don't use them inside the function if they are that default value.
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