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How would I get a cron job to run every 30 minutes?
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edited Sep 27 '11 at 13:45
Tim Cooper
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answ...
Multiple linear regression in Python
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djsdjs
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return query based on date
...ate:
db.gpsdatas.find({"createdAt" : { $gte : new ISODate("2012-01-12T20:15:31Z") }});
I'm using $gte (greater than or equals), because this is often used for date-only queries, where the time component is 00:00:00.
If you really want to find a date that equals another date, the syntax would be
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How do I list all versions of a gem available at a remote site?
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205
Well, it was easier than I thought (well, not really, let's say as easy as it should be):
gem l...
莱昂氏unix源代码分析 PDF - 文档下载 - 清泛网 - 专注C/C++及内核技术
...码
UNIX操作系统过程分类索引 3
UNIX操作系统文件及过程 5
UNIX操作系统定义的符号列表 7
UNIX操作系统源代码交叉引用列表 9
第一部分 初始化、进程初始化 25
第二部分 陷入、中断、系统调用和
进程管理 75
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How to get a specific output iterating a hash in Ruby?
...nstead of v or value?
– jrhicks
Mar 5 '17 at 13:53
1
@jrhicks Because the OP has a hash whose val...
Most popular screen sizes/resolutions on Android phones [closed]
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GrekzGrekz
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jQuery map vs. each
...ems = $.map(items, function(i) {
return i + 1;
});
// newItems is [2,3,4,5]
You can also use the map function to remove an item from an array. For example:
var items = [0,1,2,3,4,5,6,7,8,9];
var itemsLessThanEqualFive = $.map(items, function(i) {
// removes all items > 5
if (i > 5) ...
Keep only first n characters in a string?
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547
You are looking for JavaScript's String method substring
e.g.
'Hiya how are you'.substring(0...