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Determine if string is in list in JavaScript
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288
You can call indexOf:
if (['a', 'b', 'c'].indexOf(str) >= 0) {
//do something
}
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Checking to see if one array's elements are in another array in PHP
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205
You can use array_intersect().
$result = !empty(array_intersect($people, $criminals));
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How to Add Stacktrace or debug Option when Building Android Studio Project
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12 Answers
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Cluster analysis in R: determine the optimal number of clusters
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1024
If your question is how can I determine how many clusters are appropriate for a kmeans analysis...
Find Oracle JDBC driver in Maven repository
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22 Answers
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What are bitwise shift (bit-shift) operators and how do they work?
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1728
The bit shifting operators do exactly what their name implies. They shift bits. Here's a brie...
How to merge 2 JSON objects from 2 files using jq?
...t will merge them recursively. For example,
jq -s '.[0] * .[1]' file1 file2
Important: Note the -s (--slurp) flag, which puts files in the same array.
Would get you:
{
"value1": 200,
"timestamp": 1382461861,
"value": {
"aaa": {
"value1": "v1",
"value2": "v2",
"value3...
Create an array with same element repeated multiple times
In Python, where [2] is a list, the following code gives this output:
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How to validate IP address in Python? [duplicate]
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answered Nov 25 '08 at 23:50
DustinDustin
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Measuring the distance between two coordinates in PHP
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