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Reverse a string in Python
...gt;> 'hello world'[::-1]
'dlrow olleh'
This is extended slice syntax. It works by doing [begin:end:step] - by leaving begin and end off and specifying a step of -1, it reverses a string.
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What does FETCH_HEAD in Git mean?
git pull --help says:
6 Answers
6
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What characters are allowed in DOM IDs? [duplicate]
... | [#x203F-#x2040]
Source: Extensible Markup Language (XML) 1.0 (Fifth Edition) 2.3
For HTML the following applies:
id = name [CS]
This attribute assigns a name to an element. This name must be unique in a document.
ID and NAME tokens must begin with a
letter ([A-Za-z]) and may be followed
by any...
Get names of all keys in the collection
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You could do this with MapReduce:
mr = db.runCommand({
"mapreduce" : "my_collection",
"map" : function() {
for (var key in this) { emit(key, null); }
},
"reduce" : function(key, stuff) { return null; },
"out": "my_collection" + ...
How to add title to subplots in Matplotlib?
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ax.title.set_text('My Plot Title') seems to work too.
fig = plt.figure()
ax1 = fig.add_subplot(221)
ax2 = fig.add_subplot(222)
ax3 = fig.add_subplot(223)
ax4 = fig.add_subplot(224)
ax1.title.set_text('First Plot')
ax2.title.set_...
module.exports vs exports in Node.js
...le
var func = require('./module.js');
// the following line will **work** with module.exports
func();
Basically node.js doesn't export the object that exports currently references, but exports the properties of what exports originally references. Although Node.js does export the object module.expo...
Does this app use the Advertising Identifier (IDFA)? - AdMob 6.8.0
...pp users IDFA. I'm using the latest Admob SDK or 6.8.0 and I don't know if it uses IDFA or not, and if it does which check boxes should I hit X.X
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How to declare string constants in JavaScript? [duplicate]
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Many browsers' implementations (and Node) have constants, used with const.
const SOME_VALUE = "Your string";
This const means that you can't reassign it to any other value.
Check the compatibility notes to see if your targeted browsers are supported.
Alternatively, you could also mod...
Android: How to bind spinner to custom object list?
...pinner which contains some names (the names are visible) and each name has its own ID (the IDs are not equal to display sequence). When the user selects the name from the list the variable currentID has to be changed.
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Best practices for in-app database migration for Sqlite
I am using sqlite for my iphone and I anticipate the database schema might change over time. What are the gotchas, naming conventions and things to watch out for to do a successful migration each time?
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