mirror of
https://github.com/whoisclebs/lodash.git
synced 2026-01-29 14:37:49 +00:00
30 lines
553 B
JavaScript
30 lines
553 B
JavaScript
define([], function() {
|
|
|
|
/** Used as a safe reference for `undefined` in pre-ES5 environments. */
|
|
var undefined;
|
|
|
|
/**
|
|
* Gets the first element of `array`.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @alias first
|
|
* @category Array
|
|
* @param {Array} array The array to query.
|
|
* @returns {*} Returns the first element of `array`.
|
|
* @example
|
|
*
|
|
* _.head([1, 2, 3]);
|
|
* // => 1
|
|
*
|
|
* _.head([]);
|
|
* // => undefined
|
|
*/
|
|
function head(array) {
|
|
return array ? array[0] : undefined;
|
|
}
|
|
|
|
return head;
|
|
});
|