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Reference list item by index within Django template?
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190
It looks like {{ data.0 }}. See Variables and lookups.
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C++ Tuple vs Struct
...nchmark code and performance results collected using gcc-4.9.2 and clang-4.0.0:
std::vector<StructData> test_struct_data(const size_t N) {
std::vector<StructData> data(N);
std::transform(data.begin(), data.end(), data.begin(), [N](auto item) {
std::random_device rd;
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Python idiom to return first item or None
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answered Dec 13 '08 at 23:31
jfsjfs
326k132132 gold badges817817 silver badges14381438 bronze badges
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Javascript: formatting a rounded number to N decimals
...contain information about significant digits; the value 2 is the same as 2.0000000000000. It's when you turn the rounded value into a string that you have make it display a certain number of digits.
You could just add zeroes after the number, something like:
var s = number.toString();
if (s.indexO...
Measuring text width to be drawn on Canvas ( Android )
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answered Jul 15 '10 at 16:02
Marc BernsteinMarc Bernstein
10.9k55 gold badges3030 silver badges3131 bronze badges
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Random alpha-numeric string in JavaScript? [duplicate]
...ring(length, chars) {
var result = '';
for (var i = length; i > 0; --i) result += chars[Math.floor(Math.random() * chars.length)];
return result;
}
var rString = randomString(32, '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ');
Here's a jsfiddle to demonstrate: htt...
Best way to alphanumeric check in JavaScript
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10 Answers
10
Active
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SQL how to increase or decrease one for a int column in one command
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answered Jun 10 '09 at 2:01
gahooagahooa
108k1212 gold badges8686 silver badges9393 bronze badges
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Nested JSON objects - do I have to use arrays for everything?
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204
You don't need to use arrays.
JSON values can be arrays, objects, or primitives (numbers or st...
Bash Script: count unique lines in file
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306
You can use the uniq command to get counts of sorted repeated lines:
sort ips.txt | uniq -c
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