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How can I use a batch file to write to a text file?
... a script that can write one line of text to a text file in the same directory as the batch file.
7 Answers
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What is the difference between Set and List?
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List is an ordered sequence of elements whereas Set is a distinct list of elements which is unordered (thank you, Quinn Taylor).
List<E>:
An ordered collection (also known as a
sequence). The user of this interface
has pr...
How do I determine the size of my array in C?
...To determine the size of your array in bytes, you can use the sizeof
operator:
int a[17];
size_t n = sizeof(a);
On my computer, ints are 4 bytes long, so n is 68.
To determine the number of elements in the array, we can divide
the total size of the array by the size of the array element.
You cou...
How to delete/create databases in Neo4j?
...te/delete different databases in the graph database Neo4j like in MySQL? Or, at least, how to delete all nodes and relationships of an existing graph to get a clean setup for tests, e.g., using shell commands similar to rmrel or rm ?
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Mod of negative number is melting my brain
...et an array position so that it will loop round. Doing i %
arrayLength works fine for positive numbers but for negative numbers it all goes wrong.
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Gradle proxy configuration
...ed web access from Gradle through a proxy server to use the Gradle/Artifactory integration for Jenkins. To reduce possible causes for issues, I manually add the Artifactory plugin in build.gradle and run it from command line:
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Which letter of the English alphabet takes up most pixels?
...you'll have to do a similar empirical experiment to figure out the answer for your environment. But the fact is, most fonts follow the same conventions, and capital W will be the widest.
Gist with these character widths in a ratio form (W = 100) captured here using this particular example font:
h...
Xcode 5 - “iOS Simulator failed to install application” every time I switch simulators
Using Xcode 5 GM, anytime I switch to the 5.1, 6.0 or 6.1 simulators to test, I get the error "iOS Simulator failed to install application." When I reset the simulator it works, but this is getting very tiring.
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Validate decimal numbers in JavaScript - IsNumeric()
.... +true == 1; but true shouldn't be considered as "numeric").
I think is worth sharing this set of +30 unit tests made to numerous function implementations, and also share the one that passes all my tests:
function isNumeric(n) {
return !isNaN(parseFloat(n)) && isFinite(n);
}
P.S. is...
Check for installed packages before running install.packages() [duplicate]
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try: require("xtable") or "xtable" %in% rownames(installed.packages())
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