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A quick and easy way to join array elements with a separator (the opposite of split) in Java [duplic
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Still best answer because accepted requires API level 26.
– Eric Reed
Jun 26 '19 at 14:37
add a comment
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How to inspect FormData?
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best answer here - should remove all the gumpf and just leave the 2nd code snippet - many thanks
– danday74
Feb 22 '18 at 11:24
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Removing duplicate objects with Underscore for Javascript
...5},{a:2},{a:3},{a:4},{a:3},{a:2}];
var uniqueList = _.uniq(list, function(item, key, a) {
return item.a;
});
// uniqueList = [Object {a=1, b=5}, Object {a=2}, Object {a=3}, Object {a=4}]
Notes:
Callback return value used for comparison
First comparison object with unique return value used...
How do I use the ternary operator ( ? : ) in PHP as a shorthand for “if / else”?
...($user['is_logged_in'] ? $user['first_name'] : 'Guest').'!';
Conditional Items Message
echo 'Your cart contains '.$num_items.' item'.($num_items != 1 ? 's' : '').'.';
ref: https://davidwalsh.name/php-ternary-examples
sh...
What does a tilde do when it precedes an expression?
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~indexOf(item) comes up quite often, and the answers here are great, but maybe some people just need to know how to use it and "skip" the theory:
if (~list.indexOf(item)) {
// item in list
} else {
// item *not* in li...
Max return value if empty query
...sult MaxOrDefault<TElement, TResult>(this IQueryable<TElement> items, Expression<Func<TElement, TResult>> selector, TResult defaultValue = default) where TResult : struct => items.Select(selector).Max(item => (TResult?)item) ?? defaultValue;
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How do you tell someone they're writing bad code? [closed]
...sinformation I would never judge my way as better without good reason. The best way to go about this is to just ask them why they chose that way; be sure to sound interested in their reasoning, because that is what you need to attack, not their ability.
A coding standard will definitely help, but ...
Color different parts of a RichTextBox string
...lWordsIndecesBetween(rtb.Text, startWord, endWord, true);
foreach (var item in ls)
{
rtb.SelectionStart = item.X;
rtb.SelectionLength = item.Y - item.X;
rtb.SelectionColor = color;
}
rtb.SelectionStart = ss;
rtb.SelectionIndent = slct;
rtb.AutoScrollOf...
Break parallel.foreach?
... Thinking of a sequential foreach loop it's guaranteed that the items before the item that for whatever reason caused the break are processed. What about a Parallel.ForEach where order of the items does not necessarily have to be the order in which they are processed? Is it guaranteed as ...
TypeError: 'dict_keys' object does not support indexing
...nvert an iterable to a list may have a cost. Instead, to get the the first item, you can use:
next(iter(keys))
Or, if you want to iterate over all items, you can use:
items = iter(keys)
while True:
try:
item = next(items)
except StopIteration as e:
pass # finish
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