wrap.js
1.01 KB
var createWrapper = require('../internal/createWrapper'),
identity = require('../utility/identity');
/** Used to compose bitmasks for wrapper metadata. */
var PARTIAL_FLAG = 32;
/**
* Creates a function that provides `value` to the wrapper function as its
* first argument. Any additional arguments provided to the function are
* appended to those provided to the wrapper function. The wrapper is invoked
* with the `this` binding of the created function.
*
* @static
* @memberOf _
* @category Function
* @param {*} value The value to wrap.
* @param {Function} wrapper The wrapper function.
* @returns {Function} Returns the new function.
* @example
*
* var p = _.wrap(_.escape, function(func, text) {
* return '<p>' + func(text) + '</p>';
* });
*
* p('fred, barney, & pebbles');
* // => '<p>fred, barney, & pebbles</p>'
*/
function wrap(value, wrapper) {
wrapper = wrapper == null ? identity : wrapper;
return createWrapper(wrapper, PARTIAL_FLAG, undefined, [value], []);
}
module.exports = wrap;