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sqlite database default time value 'now'
...database per date. You can save space by just using an INTEGER(4) column, and storing the unix time via "INSERT INTO test (t) values (strftime("%s", CURRENT_TIME));"
– mckoss
Feb 5 '12 at 8:17
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Uniq by object attribute in Ruby
...
This is the correct answer for ruby 1.9 and later versions.
– nurettin
Dec 15 '12 at 7:06
2
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Change Placeholder Text using jQuery
...$(this).attr("placeholder", "Type your answer here");
}
});
});
Copy and paste this code in your js file, this will change all placeholder text from whole site.
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Using “Object.create” instead of “new”
...xist, if you call again this method on an existing object instance, the id and name properties will change.
Object.create lets you initialize object properties using its second argument, e.g.:
var userB = {
sayHello: function() {
console.log('Hello '+ this.name);
}
};
var bob = Object.cre...
Adding attribute in jQuery
...ttr('name', 'value');
However, for DOM properties like checked, disabled and readonly, the proper way to do this (as of JQuery 1.6) is to use prop.
$('#someid').prop('disabled', true);
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How do I change selected value of select2 dropdown with JqGrid?
...nation:
Say I have a best friend select with people's names. So Bob, Bill and John (in this example I assume the Value is the same as the name). First I initialize select2 on my select:
$('#my-best-friend').select2();
Now I manually select Bob in the browser. Next Bob does something naughty and ...
SVG图像加载扩展 - 第三方扩展集合 · App Inventor 2 中文网
...: 移除不必要的代码和注释
测试兼容性: 确保SVG在不同Android版本上正常显示
文件路径示例
资源文件: "file:///android_asset/icon.svg"
外部存储: "/storage/emulated/0/Documents/icon.svg"
网络URL: "https://example.com/icon.svg"
...
Programmatically set the initial view controller using Storyboards
...rdFile 'MainStoryboard' - perhaps the designated entry point is not set?
And you'll notice that your window property in the app delegate is now nil.
In the app's setting, go to your target and the Info tab. There clear the value of Main storyboard file base name. On the General tab, clear the val...
Rotation methods deprecated, equivalent of 'didRotateFromInterfaceOrientation'?
...ntation is now as there are a number of clean up tasks we need to perform and I can't see a block that we can assign to UIViewControllerTransitionCoordinator in order to be called when 'transition' to a new size finishes. Thanks.
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How to use a variable inside a regular expression?
...y answer:
raw strings ('r'):
One of the main concepts you have to understand when dealing with special characters in regular expressions is to distinguish between string literals and the regular expression itself. It is very well explained here:
In short:
Let's say instead of finding a word bou...