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Python dict how to create key or append an element to key?
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263
Use dict.setdefault():
dic.setdefault(key,[]).append(value)
help(dict.setdefault):
set...
PHP - iterate on string characters
...rray using the str_split function
$array = str_split($your_string);
Step 2: loop through the newly created array
foreach ($array as $char) {
echo $char;
}
You can check the PHP docs for more information: str_split
shar...
How can I add an empty directory to a Git repository?
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How do I read / convert an InputStream into a String in Java?
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Set time part of DateTime in ruby
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221
Within a Rails environment:
Thanks to ActiveSupport you can use:
DateTime.now.midnight
DateT...
MongoDb query condition on comparing 2 fields
I have a collection T , with 2 fields: Grade1 and Grade2 , and I want to select those with condition Grade1 > Grade2 , how can I get a query like in MySQL?
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Formatting numbers (decimal places, thousands separators, etc) with CSS
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You can use Number.prototype.toLocaleString(). It can also format for other number formats, e.g....
Spring Boot - parent pom when you already have a parent pom
...ncy management) without replacing the settings in your actual parent.
The 2 main other things it does are
define a load of properties for quickly setting versions of dependencies that you want to override
configure some plugins with default configuration (principally the Spring Boot maven plugin)...
How can I install from a git subdirectory with pip?
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2 Answers
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Converting from longitude\latitude to Cartesian coordinates
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answered Jul 26 '09 at 21:04
bn.bn.
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