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Defines a key/value pair that can be set or retrieved.
Yielding values with keys. PHP also supports associative arrays, and generators are no different. In addition to yielding simple values, as shown above, you can also yield a key at the same time. The syntax for yielding a key/value pair is very similar to that used to define an associative array, as shown below. Arraykeys returns the keys, numeric and string, from the array. If a searchvalue is specified, then only the keys for that value are returned. Otherwise, all the keys from the array are returned. JSON data is created by nested key-value pairs where the value can be a number, string, Boolean, null, object or array. Two built-in functions are used in PHP to encode and decode JSON data. These are jsonencode and jsondecode. In this tutorial, you will learn how you can generate and parse JSON data in various ways using PHP. Create Key Value Pair Array Using Javascript, Our today's article is simple but demanding. Most of the new or experience java-script developer required below code. In this code snippet I have define java-script array values are in the form of key and value.
The type of the value.
The following code example shows how to enumerate the keys and values in a dictionary, using the KeyValuePair<TKey,TValue> structure.
This code is part of a larger example provided for the Dictionary<TKey,TValue> class.
The Dictionary<TKey,TValue>.Enumerator.Current property returns an instance of this type.
The foreach statement of the C# language (for each in C++, For Each in Visual Basic) returns an object of the type of the elements in the collection. Since each element of a collection based on IDictionary<TKey,TValue> is a key/value pair, the element type is not the type of the key or the type of the value. Instead, the element type is KeyValuePair<TKey,TValue>. For example:
The foreach statement is a wrapper around the enumerator, which allows only reading from, not writing to, the collection. /generate-ssh-key-openssh-windows.html.
| KeyValuePair<TKey,TValue>(TKey, TValue) | Initializes a new instance of the KeyValuePair<TKey,TValue> structure with the specified key and value. |
| Key | Gets the key in the key/value pair. |
| Value | Gets the value in the key/value pair. |
| Deconstruct(TKey, TValue) | |
| ToString() | Returns a string representation of the KeyValuePair<TKey,TValue>, using the string representations of the key and value. |
The each() function returns the current key and value pair from the array array and advances the array cursor. This pair is returned in a four-element array, with the keys 0, 1, key, and value. Elements 0 and key contain the key name of the array element, and 1 and value contain the data.
| Sr.No | Parameter & Description |
|---|---|
| 1 | array(Required) It specifies an array |
It returns the current key and value pair from an array.
Try out following example −
This will produce the following result −