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Prevent automatic browser scroll on refresh
... distinguish between user initiated scroll and browser initiated. I don't know how to do this, but as I recall it is possible.
– mrtsherman
Aug 12 '11 at 5:12
1
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How many bytes does one Unicode character take?
I am a bit confused about encodings. As far as I know old ASCII characters took one byte per character. How many bytes does a Unicode character require?
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How do I call a dynamically-named method in Javascript?
... I googled it and found that global objects are part of the window object. Now it makes sense! Thank you. FYI I found a good page about it here devlicio.us/blogs/sergio_pereira/archive/2009/02/09/…
– Chris B
Jun 9 '09 at 12:45
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Rails create or update magic?
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Oh... I see what you meant now - that both forms, find_or_initialize_by and find_or_create_by accept a block. I thought you meant that whether the record exists or not, a block will be passed down with the record object as an argument, in order to do t...
How to prevent open last projects when intellij idea start
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In 14 this is now in Settings -> Appearance & Behavior -> System Settings. Or you can use the search functionality to find it easier.
– Java Devil
May 12 '15 at 23:39
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Why JavaScript rather than a standard browser virtual machine?
...never went into IT). But it's not going to happen, and we're stuck with it now.
I suspect, in time, it will become the "Machine language" for the web, with other better designed languages and APIs compile down to it (and cater for different runtime engine foibles).
I don't think, however, any of t...
Abort Ajax requests using jQuery
...ect (jQuery API documentation).
UPDATE 2:
As of jQuery 3, the ajax method now returns a promise with extra methods (like abort), so the above code still works, though the object being returned is not an xhr any more. See the 3.0 blog here.
UPDATE 3: xhr.abort() still works on jQuery 3.x. Don't as...
How to prevent form from being submitted?
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}
</script>
<form onsubmit="return toSubmit();" >
Demo
Now, this may be not a good idea when making big projects. You may need to use Event Listeners.
Please read more about Inline Events vs Event Listeners (addEventListener and IE's attachEvent) here. For I can not explain it m...
typeof !== “undefined” vs. != null
...e would use the !== or === operators when comparing a value whose type is known to be a string.
– Nicolas Rinaudo
Aug 30 '13 at 7:38
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How to check if a Ruby object is a Boolean
...String".boolean?
=> false
>> 1.boolean?
=> false
>> Time.now.boolean?
=> false
>> nil.boolean?
=> false
>> true.boolean?
=> true
>> false.boolean?
=> true
>> (1 ==1).boolean?
=> true
>> (1 ==2).boolean?
=> true
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