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Null coalescing in powershell
...ms -ne $null
[string]::Join(', ', ($instances | ForEach-Object -Process { $_.GetType() }))
# Result:
System.String, System.Int32, System.Int32, System.String, System.Object[],
System.Boolean, System.Boolean
-eq works similarly, which is useful for counting null entries:
($null, 'a', $null -eq $n...
Sequelize.js delete query?
...{
// Handle *where* argument which is specified as an integer
if (_.isFinite(+where)) {
where = {
id: where
};
}
Model.findAll({
where:where
}).success(function(collection) {
if (collection) {
if (_.isArray(collection)) {
...
Determine if Python is running inside virtualenv
...t reliable way to check for this is to check whether sys.prefix == sys.base_prefix. If they are equal, you are not in a virtual environment; if they are unequal, you are. Inside a virtual environment, sys.prefix points to the virtual environment, and sys.base_prefix is the prefix of the system Pytho...
How can I group data with an Angular filter?
...ddle.net/TD7t3/
The filter
app.filter('groupBy', function() {
return _.memoize(function(items, field) {
return _.groupBy(items, field);
}
);
});
Note the 'memoize' call. This underscore method caches the result of the function and stops angular from evaluating the fil...
How do I iterate over a JSON structure? [duplicate]
...
Similarly, lodash offers _.forEach (alias _.each for underscore compatibility) to accomplish the same.
– Ville
Oct 25 '14 at 5:29
...
Use gulp to select and move directories and their files
...serve the file structure the way you want:
var filesToMove = [
'./_locales/**/*.*',
'./icons/**/*.*',
'./src/page_action/**/*.*',
'./manifest.json'
];
gulp.task('move',['clean'], function(){
// the base option sets the relative root for the set of files,
// ...
Why does JQuery have dollar signs everywhere?
...mented lots of options. You can use $ or you can use jQuery or you can use _
(function (_) {
_("#wow").click()
})(jQuery);
Or maybe you can do fancy changes, javascript identifiers are unicode so you can use Ω
(function (Ω) {
Ω("#wow").click()
})(jQuery);
But the main idea behind it, pr...
Create timestamp variable in bash script
...cial documentation here: https://www.gnu.org/software/coreutils/manual/html_node/Time-conversion-specifiers.html#Time-conversion-specifiers
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foll...
Ruby capitalize every word first letter
...s:
"kirk douglas".titleize => "Kirk Douglas"
#this also works for 'kirk_douglas'
w/o Rails:
"kirk douglas".split(/ |\_/).map(&:capitalize).join(" ")
#OBJECT IT OUT
def titleize(str)
str.split(/ |\_/).map(&:capitalize).join(" ")
end
#OR MONKEY PATCH IT
class String
def titleize...
Change Twitter Bootstrap Tooltip content on click
....
Another way (see @lukmdo comment below):
$(element).attr('title', 'NEW_TITLE')
.tooltip('fixTitle')
.tooltip('show');
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