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How to copy file from HDFS to the local file system
...achine:50070), browse to the file you intend to copy, scroll down the page and click on download the file.
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How to get the first word of a sentence in PHP?
... Lets make it 100, its help me :)
– Shivam Pandya
Feb 22 '16 at 8:25
41
Using modern PHP...
How to interpolate variables in strings in JavaScript, without concatenation?
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You can take advantage of Template Literals and use this syntax:
`String text ${expression}`
Template literals are enclosed by the back-tick (` `) (grave accent) instead of double or single quotes.
This feature has been introduced in ES2015 (ES6).
Example
var...
Hash function that produces short hashes?
Is there a way of encryption that can take a string of any length and produce a sub-10-character hash? I want to produce reasonably unique ID's but based on message contents, rather than randomly.
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All Ruby tests raising: undefined method `authenticate' for nil:NilClass
Most of my tests are raising the following and I don't understand why. All methods call raise the 'authenticate' error. I've checked the code if there was a method called "authenticate" but there is no such method.
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How can I use a batch file to write to a text file?
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You can use echo, and redirect the output to a text file (see notes below):
rem Saved in D:\Temp\WriteText.bat
@echo off
echo This is a test> test.txt
echo 123>> test.txt
echo 245.67>> test.txt
Output:
D:\Temp>WriteText
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How do I make a matrix from a list of vectors in R?
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So the difference between this and the standard rbind() is that do.call() passes each list item as a separate arg - is that right? do.call(rbind,a) is equivalent to rbind(a[[1]], a[[2]]... a[[10]])?
– Matt Parker
Aug...
Using NSPredicate to filter an NSArray based on NSDictionary keys
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I know it's old news but to add my two cents. By default I use the commands LIKE[cd] rather than just [c]. The [d] compares letters with accent symbols. This works especially well in my Warcraft App where people spell their name "Vòódòó" making it nearly impossible to search for their name i...
How do I PHP-unserialize a jQuery-serialized form?
...g on the request type.
The serialize method just takes the form elements and puts them in string form. "varname=val&var2=val2"
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How to display HTML in TextView?
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h2 by definition creates a lot of margin around itself. and p also comes with some margin. if you don't want the gap, you might want to consider using other html elements.
– David Hedlund
Jan 22 '10 at 10:58
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