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pandas read_csv and filter columns with usecols
...s.read_csv when I filter the columns with usecols and use multiple indexes.
5 Answers
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How can I implement prepend and append with regular JavaScript?
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so prepend is basically this then function prepend(tag, ele) { var x =document.getElementsByTagName(tag)[0]; x.insertBefore(ele ,x.children[0]); }
– Muhammad Umer
Jul 8 '15 at 19:13
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PHP and Enumerations
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Depending upon use case, I would normally use something simple like the following:
abstract class DaysOfWeek
{
const Sunday = 0;
const Monday = 1;
// etc.
}
$today = DaysOfWeek::Sunday;
However, other use cases may require more validation of cons...
Best way to resolve file path too long exception
I created a app that downloads all document libraries in a SP Site , but at one point it giving me this error (I tried looking at google but couldn;t find anything, now if anyone knows any trick to solve this problem please respond otherwise thanks for looking at it)
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Replace multiple strings with multiple other strings
...j[matched];
});
jsfiddle example
Generalizing it
If you want to dynamically maintain the regex and just add future exchanges to the map, you can do this
new RegExp(Object.keys(mapObj).join("|"),"gi");
to generate the regex. So then it would look like this
var mapObj = {cat:"dog",dog:"goat"...
How do I see the last 10 commits in reverse-chronological order with SVN?
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SVN has really useful built-in help. svn help log would probably be even faster than a Google search.
– user229044♦
Apr 20 '10 at 14:13
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Inserting multiple rows in a single SQL query? [duplicate]
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@ahnbizcad Semicolons in T-sql are USUALLY optional, but they are reported to be required in the future. You should get yourself in the habit of using them to terminate each statement--your code will look nicer too IMO.
– NReilingh
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NPM cannot install dependencies - Attempt to unlock something which hasn't been locked
I've been trying to run an npm install on my package.json file, but I'm having a lot of trouble. It keeps saying "Error: Attempt to unlock XXX, which hasn't been locked" on all my dependences. Here's one of them:
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Differences between “BEGIN RSA PRIVATE KEY” and “BEGIN PRIVATE KEY”
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Copying the content from the above link for quick reference:
#define PEM_STRING_X509_OLD "X509 CERTIFICATE"
#define PEM_STRING_X509 "CERTIFICATE"
#define PEM_STRING_X509_PAIR "CERTIFICATE PAIR"
#define PEM_STRING_X509_TRUSTED "TRUSTED CERTIFICATE"
#define PEM_STRING_X509_REQ_OLD "NEW CERTI...
Can I disable autolayout for a specific subview at runtime?
I have a view that needs to have its frame manipulated programmatically - it's a kind of document view that wraps to its content which is then scrolled and zoomed around a superview by manipulating the frame origin. Autolayout fights with this at runtime.
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