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How to enumerate an object's properties in Python?
...). Setting values directly on the dictionary bypasses the object's setter (and/or its parents'). It's quite common in python that more things than meet the eye are happening in the background during attribute setting (e.g. sanitation), using setattr() ensures that you don't miss out, or are forced t...
Xcode Simulator: how to remove older unneeded devices?
...quit xcode so you are forced to install again.
– Alejandro Luengo
Jan 16 '13 at 9:17
That's right Alejandro, Apple see...
MySQL error code: 1175 during UPDATE in MySQL Workbench
...update the column visited to give it the value 1. I use MySQL workbench, and I'm writing the statement in the SQL editor from inside the workbench. I'm writing the following command:
...
Local dependency in package.json
...encies": {
"somelocallib": "0.0.x"
}
Then run npm link ../somelocallib and npm will install the version you're working on as a symlink.
app@0.0.1 /private/tmp/app
└── somelocallib@0.0.1 -> /private/tmp/somelocallib
Reference: link(1)
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B-Tree vs Hash Table
In MySQL, an index type is a b-tree, and access an element in a b-tree is in logarithmic amortized time O(log(n)) .
5 Answ...
How to check if a String is numeric in Java
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With Apache Commons Lang 3.5 and above: NumberUtils.isCreatable or StringUtils.isNumeric.
With Apache Commons Lang 3.4 and below: NumberUtils.isNumber or StringUtils.isNumeric.
You can also use StringUtils.isNumericSpace which returns true for empty st...
Unable to understand useCapture parameter in addEventListener
...eveloper.mozilla.org/en/DOM/element.addEventListener but unable to understand useCapture attribute. Definition there is:
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How to place two divs next to each other?
...pper div to contain both the floated children, or it will think it's empty and not put the border around them
Floating both divs:
#wrapper {
width: 500px;
border: 1px solid black;
overflow: hidden; /* add this to contain floated children */
}
#first {
width: 300px;
float:left; ...
Difference between $state.transitionTo() and $state.go() in Angular ui-router
In AngularJS, I see sometimes we use $state.transitionTo() and sometimes we use $state.go() . Can anyone tell me how they differ and when one should be used over the other?
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Ternary operation in CoffeeScript
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Since everything is an expression, and thus results in a value, you can just use if/else.
a = if true then 5 else 10
a = if false then 5 else 10
You can see more about expression examples here.
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