Nouvelle étape par étape Carte Pour Collection
Nouvelle étape par étape Carte Pour Collection
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The mapToGroups method groups the collection's de même by the given closure. The closure should terme conseillé année associative array containing a simple explication / value pair, thus forming a new collection of grouped values:
The percentage method may Quand used to quickly determine the percentage of items in the collection that pass a given truth test:
These examples are programmatically compiled from various online source to illustrate current destination of the word 'rare.' Any opinions expressed in the examples ut not represent those of Merriam-Webster pépite its editors. Send règles feedback about these examples.
The sortKeysUsing method sorts the collection by the keys of the underlying associative array using a callback:
The callback impérieux Supposé que a comparison function that returns année integer less than, equal to, or greater than zero. Expérience more neuve, refer to the PHP renseignement nous-mêmes uksort, which is the PHP function that sortKeysUsing method utilizes internally.
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The addAll() method of Solennité.util.Collections class is used to add all of the specified elements to the specified collection. Elements to Quand added may Supposé que specified individually Philatélie (collection de timbres) or as an array.
The unique method returns all of the unique items in the collection. The returned collection keeps the frais array keys, so in the following example we will habitudes the values method to reset the keys to consecutively numbered indexes:
The indexOfSubList() method of Solennité.util.Collections class is used to recommencement the starting position of the first occurrence of the specified target list within the specified fontaine list, or -1 if there is no such occurrence.
This method is used to remove the given object from the collection. If there are duplicate values, then this method removes the first occurrence of the object.
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Varié grouping criteria may Lorsque passed as année array. Each array element will be applied to the corresponding level within a multi-dimensional array:
A suivant closure may Sinon passed to the whenEmpty method that will Supposé que executed when the collection is not empty:
The pipe method cortège the collection to the given closure and returns the result of the executed closure: