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What Does 'Then' Really Mean in CasperJS

... then() basically adds a new navigation step in a stack. A step is a javascript function which can do two different things: waiting for the previous step - if any - being executed waiting for a requested url and related page to load ...
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How to properly create composite primary keys - MYSQL

...is a gross oversimplification of an intense setup I am working with. table_1 and table_2 both have auto-increment surrogate primary keys as the ID. info is a table that contains information about both table_1 and table_2 . ...
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新浪是如何分析处理32亿条实时日志的? - 更多技术 - 清泛网 - 专注C/C++及内核技术

...x open files等;App Level的优化如Java运行环境版本的选择,ES_HEAP_SIZE的设置,修改bulk index的queue size等,另外还设置了默认的index template,目的是更改默认的shard,replica数并将string改为not_analyzed,开启doc_values以应对elasticsearch进程OOM...
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@RequestParam vs @PathVariable

...re interesting annotation: @MatrixVariable http://localhost:8080/spring_3_2/matrixvars/stocks;BT.A=276.70,+10.40,+3.91;AZN=236.00,+103.00,+3.29;SBRY=375.50,+7.60,+2.07 And the Controller method for it @RequestMapping(value = "/{stocks}", method = RequestMethod.GET) public String showPortfo...
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How to initialize static variables

... I love PHP, but it's really odd sometimes. – Marco Demaio Nov 10 '11 at 21:46 6 ...
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Matplotlib - Move X-Axis label downwards, but not X-Axis Ticks

... If the variable ax.xaxis._autolabelpos = True, matplotlib sets the label position in function _update_label_position in axis.py according to (some excerpts): bboxes, bboxes2 = self._get_tick_bboxes(ticks_to_draw, renderer) bbox = mtransforms...
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Task vs Thread differences [duplicate]

I'm new to parallel programming. There are two classes available in .NET: Task and Thread . 4 Answers ...
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Using multiple arguments for string formatting in Python (e.g., '%s … %s')

...swered Jul 18 '14 at 17:49 Lordn__nLordn__n 31411 silver badge1111 bronze badges ...
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TypeScript function overloading

...use, when both functions are compiled to JavaScript, their signature is totally identical. As JavaScript doesn't have types, we end up creating two functions taking same number of arguments. So, TypeScript restricts us from creating such functions. TypeScript supports overloading based on number of...
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Print a string as hex bytes?

... Note that in python3, the concept of printing a str as hex doesn't really make sense; you'll want to print bytes object as hex (convert str to bytes by calling .encode()). – mic_e May 8 '15 at 12:53 ...