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Clearing localStorage in javascript?
...rStorageExcept = function(exceptions) {
let keys = [];
exceptions = [].concat(exceptions); // prevent undefined
// get storage keys
$.each(localStorage, (key) => {
keys.push(key);
});
// loop through keys
for (let i = 0; i < keys.length; i++) {
let key = keys[i];
le...
How to merge 2 List and removing duplicate values from it in C#
...excludes duplicates from the return set. This is different
behavior to the Concat
method, which returns all the elements
in the input sequences including
duplicates.
List<int> list1 = new List<int> { 1, 12, 12, 5};
List<int> list2 = new List<int> { 12, 5, 7, 9, 1 };
List<...
Using LINQ to concatenate strings
...bit slower, actually. Even using Aggregate with a StringBuilder instead of concatenation is slower than String.Join.
– Joel Mueller
May 7 '09 at 20:33
4
...
Combine two columns of text in pandas dataframe
...
if both columns are strings, you can concatenate them directly:
df["period"] = df["Year"] + df["quarter"]
If one (or both) of the columns are not string typed, you should convert it (them) first,
df["period"] = df["Year"].astype(str) + df["quarter"]
Beware...
Best way to format integer as string with leading zeros? [duplicate]
...
I've chosen to concat the format string instead, inserting the length of a list for example. Are there any advantages of your way of doing it?
– Zelphir Kaltstahl
Aug 29 '15 at 10:19
...
Remove Object from Array using JavaScript
...n x, use:
someArray.splice(x, 1);
Or
someArray = someArray.slice(0, x).concat(someArray.slice(-x));
Reply to the comment of @chill182: you can remove one or more elements from an array using Array.filter, or Array.splice combined with Array.findIndex (see MDN), e.g.
// non destructive fil...
angular ng-repeat in reverse
..., 4];
$scope.reverse = function(array) {
var copy = [].concat(array);
return copy.reverse();
}
});
</script>
</head>
<body ng-controller="Ctrl">
<ul>
<li ng-repeat="item in items">{{item}}</li>
</u...
How to access pandas groupby dataframe by key
...ionally - turn it all back into a single dataframe object
sampled_df = pd.concat(df_list, axis=0, join='outer')
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Count the occurrences of DISTINCT values
...as an aggregate function works on the entire dataset, suming, counting, or concating the specified field down to one row. Group by subdivides the dataset into chunks based on unique combos of the specified fields
– Avatar_Squadron
Aug 24 '12 at 16:37
...
Adding two numbers concatenates them instead of calculating the sum
...
I kept making this mistake which always concats: var k += Number(i)
– John Phelps
May 29 '19 at 18:43
...