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How to convert a string to lower or upper case in Ruby
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You can find out all the methods available on a String by opening irb and running:
"MyString".methods.sort
And for a list of the methods available for strings in particular:
"MyString".own_methods.sort
I use this to find out new and int...
VR硬件行业洗牌进行时 70%创业公司倒闭转行做内容 - 资讯 - 清泛网 - 专注C...
...所以买了VR头显设备后，还得为此买个电脑。
对应这一问题，蓝港互动的策略是用游戏主机——战斧代替PC，作为VR的计算设备。蓝港互动CTO陈敏告诉记者，战斧的定位即是家庭游戏机，也可以成为VR的连接器。这也意味着，用...
How to store decimal values in SQL Server?
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DECIMAL(18,0) will allow 0 digits after the decimal point.
Use something like DECIMAL(18,4) instead that should do just fine!
That gives you a total of 18 digits, 4 of which after the decimal point (and 14 before the decimal point).
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Shell Script — Get all files modified after
...gs tar --no-recursion -czf myfile.tgz
where find . -mtime -1 will select all the files in (recursively) current directory modified day before. you can use fractions, for example:
find . -mtime -1.5 | xargs tar --no-recursion -czf myfile.tgz
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How to send email from Terminal?
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Note all this solutions assume you have a locally installed MTA
– Miquel
Nov 24 '11 at 18:07
11
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Limit number of characters allowed in form input text field
...work fine. So say if you wanted the values to be between 1-50 you could or all positive numbers, etc.
– b3verelabs
Dec 17 '11 at 14:34
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Create a CSS rule / class with jQuery at runtime
Usually I have a CSS file which has the following rule:
21 Answers
21
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Tri-state Check box in HTML?
...ment, I found a better solution:
HTML5 defines a property for checkboxes called indeterminate
See w3c reference guide. To make checkbox appear visually indeterminate set it to true:
element.indeterminate = true;
Here is Janus Troelsen's fiddle. Note, however, that:
The indeterminate state can...
Best place to insert the Google Analytics code [duplicate]
...ency; in the footer will reduce the number of pageviews recorded at some small margin. It's a tradeoff. ga.js is heavily cached and present on a large percentage of sites across the web, so its often served from the cache, reducing latency to almost nil.
As a matter of personal preference, I like ...
Is there a query language for JSON?
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Sure, how about:
JsonPath.
Json Query
They all seem to be a bit work in progress, but work to some degree. They are also similar to XPath and XQuery conceptually; even though XML and JSON have different conceptual models (hierarchic vs object/struct).
EDIT Sep-2015: ...