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How to get number of entries in a Lua table?
Sounds like a "let me google it for you" question, but somehow I can't find an answer. The Lua # operator only counts entries with integer keys, and so does table.getn :
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How to get the first non-null value in Java?
... There's something about that blog page that doesn't work with Google Translate. :-(
– HairOfTheDog
May 14 '15 at 23:28
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Django: Get an object form the DB, or 'None' if nothing matches
...evil" because some tutorial author of your favourite language said so. Try google: "ask forgiveness rather than permission".
– Tomasz Gandor
Aug 31 '13 at 6:44
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“wait_fences: failed to receive reply: 10004003”?
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After trying everything I could find on Google and none of it working, this is what solved the problem for me. The key is that I'm doing this stuff in the willDismissWithButtonIndex delegate method. Before I was doing it elsewhere.
- (void)alertView:(UIAlertView *...
Converting int to bytes in Python 3
... @DaveJones Also, the reason I added this answer was because Google takes you here when searching to do precisely this. So that's why it's here.
– Andy Hayden
Mar 5 '17 at 23:36
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How to copy text programmatically in my Android app?
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Googling brings you to android.content.ClipboardManager and you could decide, as I did, that Clipboard is not available on API < 11, because the documentation page says "Since: API Level 11".
There are actually two classe...
What is in your Mathematica tool bag? [closed]
... you redefine the DownValues at run-time, you can look at this post groups.google.com/group/comp.soft-sys.math.mathematica/…, for an example (SetDelayed redefinition). But my method is less elegant, less robust, more error-prone, and makes breaking from recursion much less trivial to implement. S...
Is it possible to use JS to open an HTML select to show its option list? [duplicate]
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This works on Google Chrome
dropDown = function (elementId) {
var dropdown = document.getElementById(elementId);
try {
showDropdown(dropdown);
} catch(e) {
}
return false;
};
showDropdown = function (element)...
Javascript: negative lookbehind equivalent?
...\d*)/) // Matches "8.47"
);
Platform support:
✔️ V8
✔️ Google Chrome 62.0
✔️ Microsoft Edge 79.0
✔️ Node.js 6.0 behind a flag and 9.0 without a flag
✔️ Deno (all versions)
✔️ SpiderMonkey
✔️ Mozilla Firefox 78.0
????️ JavaScriptCore: Apple is working on ...
Can HTML checkboxes be set to readonly?
...of people want to know how to make checkboxes readonly so they do this: 1) Google "Checkbox readonly". 2) See that the title of this question matches what they want to do and click it. 3) Scroll down until they find this answer. 4) Happiness and upvote.
– Mark Byers
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