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Finding child element of parent pure javascript
...ke document.getElementsByClassName('parent')[0] if you so desire.
Edit: Now that I think about it, you could just use querySelectorAll to get decendents of parent having a class name of child1:
children = document.querySelectorAll('.parent .child1');
The difference between qS and qSA is that t...
SQL ON DELETE CASCADE, Which Way Does the Deletion Occur?
... Great! Thank you. follow up answer: Because I way over thought it. Fixed now... and in my DB
– Oliver Spryn
Nov 18 '12 at 21:43
59
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How do I get a TextBox to only accept numeric input in WPF?
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Please let me know how to use it when declares in some other STATIC class and apply to textbox?
– SHEKHAR SHETE
Jun 28 '13 at 7:41
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Undo a Git merge that hasn't been pushed yet
...e, though, after a reset git will tell you where the new head is: "HEAD is now at 88a04de <commit message>". I always look at that to make sure that I ended up where I expected to be. My project uses a standard branch naming scheme to keep things memorable.
– Mark E. Haas...
How to fix “containing working copy admin area is missing” in SVN?
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@MohammadArif, There are two "Robs" now
– Charles Clayton
Jun 12 '17 at 20:32
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show 1 more comment
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Enforcing the type of the indexed members of a Typescript object?
...lse,
};
10.10.2018 update:
Check out @dracstaxi's answer below - there's now a built-in type Record which does most of this for you.
1.2.2020 update:
I've entirely removed the pre-made mapping interfaces from my answer. @dracstaxi's answer makes them totally irrelevant. If you'd still like to u...
How to shuffle a std::vector?
...not very efficient because it needs an intermediate array and it needs to know the item type (DeckCard in this example):
6 ...
Wrap long lines in Python [duplicate]
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My experience with it until now says that it doesn't have any downsides. It's an all-weather, very readable pattern that can be used everywhere, from messages to compiler backends.
– Ioannis Filippidis
Dec 2 '15 at...
How do I get the number of elements in a list?
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items.append("apple")
items.append("orange")
items.append("banana")
And now:
len(items)
returns 3.
Explanation
Everything in Python is an object, including lists. All objects have a header of some sort in the C implementation.
Lists and other similar builtin objects with a "size" in Python...
Play sound on button click android
...rt() method. This method starts the playback of the sound.
There, you can now play a sound on button click in Android!
Bonus part:
As noted in the comment belowThanks Langusten Gustel!, and as recommended in the Android Developer Reference, it is important to call the release() method to free u...