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How to implement “select all” check box in HTML?

...: for each...in is actually valid Javascript: developer.mozilla.org/en/Core_JavaScript_1.5_Reference/… But, as porneL has pointed out, it's an obscure construct. Also, this code doesn't work in Safari 5 or Chrome 5. It works in FF 3.6, and IIRC, it worked in Safari 4. for(var i in checkboxes) chec...
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What is “android.R.layout.simple_list_item_1”?

...ayout.html (Updated link thanks @Estel: https://github.com/android/platform_frameworks_base/tree/master/core/res/res/layout ) You can actually view the code for the layouts. share | improve this an...
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back button callback in navigationController in iOS

...elegate if it should pop the top UINavigationItem by calling navigationBar(_:shouldPop:). UINavigationController actually implement this, but it doesn't publicly declare that it adopts UINavigationBarDelegate (why!?). To intercept this event, create a subclass of UINavigationController, declare its ...
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Auto-center map with multiple markers in Google Maps API v3

...center your point: //Example values of min & max latlng values var lat_min = 1.3049337; var lat_max = 1.3053515; var lng_min = 103.2103116; var lng_max = 103.8400188; map.setCenter(new google.maps.LatLng( ((lat_max + lat_min) / 2.0), ((lng_max + lng_min) / 2.0) )); map.fitBounds(new google...
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How to step through Python code to help debug issues?

...rSummoner, pudb is great for that. Also pydev – alpha_989 Jun 11 '18 at 19:45 pdb is not a command line tool. To use i...
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How do I migrate a model out of one django app and into a new one?

...on and specific: myproject/ |-- common | |-- migrations | | |-- 0001_initial.py | | `-- 0002_create_cat.py | `-- models.py `-- specific |-- migrations | |-- 0001_initial.py | `-- 0002_create_dog.py `-- models.py Now we want to move model common.models.cat to specif...
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machine learning libraries in C# [closed]

...asses: public class TrainingSet { private readonly List<string> _attributes = new List<string>(); private readonly List<List<object>> _examples = new List<List<object>>(); public TrainingSet(params string[] attributes) { _attributes.AddRang...
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Python multiprocessing pool.map for multiple arguments

... function: import multiprocessing from itertools import product def merge_names(a, b): return '{} & {}'.format(a, b) if __name__ == '__main__': names = ['Brown', 'Wilson', 'Bartlett', 'Rivera', 'Molloy', 'Opie'] with multiprocessing.Pool(processes=3) as pool: results = poo...
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Test for existence of nested JavaScript object key

... Update Looks like lodash has added _.get for all your nested property getting needs. _.get(countries, 'greece.sparta.playwright') https://lodash.com/docs#get Previous answer lodash users may enjoy lodash.contrib which has a couple methods that mitigate ...
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How to sort an IEnumerable

...myList = myEnumerable.ToList(); myList.Sort(); Based on your comment: _components = (from c in xml.Descendants("component") let value = (string)c orderby value select value ) .Distinct() .ToList(); or _com...