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Test whether string is a valid integer

...of "+" (e.g. +30) which obviously is an integer. Results: $ int_check.sh 123 123 is an integer !! $ int_check.sh 123+ ERROR: first parameter must be an integer. $ int_check.sh -123 -123 is an integer !! $ int_check.sh +30 +30 is an integer !! $ int_check.sh -123c ERROR: first parameter must be...
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Prevent BODY from scrolling when a modal is opened

... Inspired by: http://jdsharp.us/jQuery/minute/calculate-scrollbar-width.php share | improve this answer | follow | ...
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Elements order in a “for (… in …)” loop

...[i,obj[i]].join(':')); console.log(arr); } var obj = { a:1, b:2, c:3, "123":'xyz' }; /* log1 */ lineate(obj); obj.a = 4; /* log2 */ lineate(obj); delete obj.a; obj.a = 4; /* log3 */ lineate(obj); gist or test in current browser Safari 5, Firefox 14 ["a:1", "b:2", "c:3", "123:xyz"] ["a:4",...
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创业测试:50个迹象表明你真该创业了 - 资讯 - 清泛网 - 专注C/C++及内核技术

...个很吓人的过程,需要大量辛勤的劳作。但是是否创业这问题日夜都在困扰着你。至于原因,或许你仅仅是不满足于自己的现状;或许你是渴望开一家属于自己的店铺或是咨询公司;再或者只是你觉得你的生活需要一个显著的变化...
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创业 比“直男癌”更可怕的是“技术癌” - 资讯 - 清泛网 - 专注C/C++及内核技术

...方案成本过高,则实用性大大降低,仍然无法真正地解决问题。更有甚者,明明市场上已有采用通用技术的、低成本的解决方案,却仅仅因为对技术的痴迷而生搬硬套地非要用高科技、高大上的手段去替代现有方案,却无视其带...
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AngularJS access scope from outside js function

... @dk123 angular.element("#scope") is not working, though angular.element($("#scope")) is working, you need to have jquery also – Arun P Johny Mar 15 '13 at 5:11 ...
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Struggling with NSNumberFormatter in Swift for currency

...e on how to use it on Swift 3. ( Edit: Works in Swift 4 too ) let price = 123.436 as NSNumber let formatter = NumberFormatter() formatter.numberStyle = .currency // formatter.locale = NSLocale.currentLocale() // This is the default // In Swift 4, this ^ has been renamed to simply NSLocale.current ...
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How to customize an end time for a YouTube video?

...&end=117 Live DEMO: https://puvox.software/software/youtube_trimmer.php share | improve this answer | follow | ...
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App Inventor 2开发计步器与定位器 - App Inventor 2 中文网 - 清泛IT论坛,有思想、有深度

...能。   2.主题:编写“健身宝”手机应用程序   3.问题:   (1)如何获取走路步数、距离?   (2)如何计算走路时间?   (3)如何获得当前位置?   (4)如何存储信息?   4.规划:   (1)利用pedome...
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提问 - App Inventor 2 中文网 - 清泛IT社区,为创新赋能!

...sp;使用下面程序时,为什么每次都会把实际数字设为0问题出在你的判断逻辑上: 这里和你拼接的字符串比较,非常容易出错,比如多了或少了一个空格等。实际编程中判断最好使用数字,也就是你选择了难度等级是第几...