大约有 44,000 项符合查询结果（耗时：0.0842秒） [XML]
How to chain scope queries with OR instead of AND?
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and just for safety's sake, it's worth expressing this as Person.where("name = ? OR lastname = ?", 'John', 'Smith')
– CambridgeMike
Nov 9 '11 at 3:55
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The property 'value' does not exist on value of type 'HTMLElement'
... = (document.getElementById(elementId)).value;
i.e. containing no type information.
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Best way to synchronize local HTML5 DB (WebSQL Storage, SQLite) with a server (2 way sync) [closed]
I am developing a mobile web application (for iPhone & Android) with a local database (using html5 webstorage) so my app is still usable when the user is offline.
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Is there any way to call a function periodically in JavaScript?
...val. Functions should almost always be used in favor of a string argument, for efficiency, security, and for their closure features.
– Jason S
Aug 3 '09 at 20:55
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iPhone : How to detect the end of slider drag?
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You can add an action that takes two parameters, sender and an event, for UIControlEventValueChanged:
[slider addTarget:self action:@selector(onSliderValChanged:forEvent:) forControlEvents:UIControlEventValueChanged]
Then check the phase of the touch object in your handler:
- (void)onSlider...
Overriding a Rails default_scope
...o override the default scope if you need to.
Have a look at this question for more details.
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Convert JSON String to Pretty Print JSON output using Jackson
...when I use indented to add into the Model so that I can show them in resultform page. It still gets printed in two three lines. I have updated the question, maybe you will get some more idea what's happening now.
– arsenal
Jan 26 '13 at 3:09
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How to disable an input type=text?
...add the readonly attribute (or disabled, if you want to remove it from the form submission as well) to the <input>, like this:
<input type="text" disabled="disabled" />
//or...
<input type="text" readonly="readonly" />
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Number of processors/cores in command line
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nproc is what you are looking for.
More here : http://www.cyberciti.biz/faq/linux-get-number-of-cpus-core-command/
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How to have jQuery restrict file types on upload?
...a JavaScript function already so I really just need to know how to check for the file types before submit or alert.
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