mirror of
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Use slice.call internally when working with arguments instead of _.toArray or _.rest
This commit is contained in:
Ryan W Tenney
32
underscore-min.js
vendored
32
underscore-min.js
vendored
@@ -1,18 +1,18 @@
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|
||||
@@ -182,7 +182,7 @@
|
||||
|
||||
// Invoke a method with arguments on every item in a collection.
|
||||
_.invoke = function(obj, method) {
|
||||
var args = _.rest(arguments, 2);
|
||||
var args = slice.call(arguments, 2);
|
||||
return _.map(obj, function(value) {
|
||||
return (method ? value[method] : value).apply(value, args);
|
||||
});
|
||||
@@ -266,7 +266,7 @@
|
||||
// Returns everything but the first entry of the array. Aliased as "tail".
|
||||
// Especially useful on the arguments object. Passing an "index" will return
|
||||
// the rest of the values in the array from that index onward. The "guard"
|
||||
//check allows it to work with _.map.
|
||||
// check allows it to work with _.map.
|
||||
_.rest = function(array, index, guard) {
|
||||
return slice.call(array, _.isUndefined(index) || guard ? 1 : index);
|
||||
};
|
||||
@@ -292,7 +292,7 @@
|
||||
|
||||
// Return a version of the array that does not contain the specified value(s).
|
||||
_.without = function(array) {
|
||||
var values = _.rest(arguments);
|
||||
var values = slice.call(arguments, 1);
|
||||
return _.filter(array, function(value){ return !_.include(values, value); });
|
||||
};
|
||||
|
||||
@@ -308,7 +308,7 @@
|
||||
// Produce an array that contains every item shared between all the
|
||||
// passed-in arrays.
|
||||
_.intersect = function(array) {
|
||||
var rest = _.rest(arguments);
|
||||
var rest = slice.call(arguments, 1);
|
||||
return _.filter(_.uniq(array), function(item) {
|
||||
return _.every(rest, function(other) {
|
||||
return _.indexOf(other, item) >= 0;
|
||||
@@ -319,7 +319,7 @@
|
||||
// Zip together multiple lists into a single array -- elements that share
|
||||
// an index go together.
|
||||
_.zip = function() {
|
||||
var args = _.toArray(arguments);
|
||||
var args = slice.call(arguments);
|
||||
var length = _.max(_.pluck(args, 'length'));
|
||||
var results = new Array(length);
|
||||
for (var i = 0; i < length; i++) results[i] = _.pluck(args, "" + i);
|
||||
@@ -349,7 +349,7 @@
|
||||
// the native Python range() function. See:
|
||||
// http://docs.python.org/library/functions.html#range
|
||||
_.range = function(start, stop, step) {
|
||||
var a = _.toArray(arguments);
|
||||
var a = slice.call(arguments);
|
||||
var solo = a.length <= 1;
|
||||
var start = solo ? 0 : a[0], stop = solo ? a[0] : a[1], step = a[2] || 1;
|
||||
var len = Math.ceil((stop - start) / step);
|
||||
@@ -366,16 +366,16 @@
|
||||
// Create a function bound to a given object (assigning 'this', and arguments,
|
||||
// optionally). Binding with arguments is also known as 'curry'.
|
||||
_.bind = function(func, obj) {
|
||||
var args = _.rest(arguments, 2);
|
||||
var args = slice.call(arguments, 2);
|
||||
return function() {
|
||||
return func.apply(obj || {}, args.concat(_.toArray(arguments)));
|
||||
return func.apply(obj || {}, args.concat(slice.call(arguments)));
|
||||
};
|
||||
};
|
||||
|
||||
// Bind all of an object's methods to that object. Useful for ensuring that
|
||||
// all callbacks defined on an object belong to it.
|
||||
_.bindAll = function(obj) {
|
||||
var funcs = _.rest(arguments);
|
||||
var funcs = slice.call(arguments, 1);
|
||||
if (funcs.length == 0) funcs = _.functions(obj);
|
||||
each(funcs, function(f) { obj[f] = _.bind(obj[f], obj); });
|
||||
return obj;
|
||||
@@ -394,14 +394,14 @@
|
||||
// Delays a function for the given number of milliseconds, and then calls
|
||||
// it with the arguments supplied.
|
||||
_.delay = function(func, wait) {
|
||||
var args = _.rest(arguments, 2);
|
||||
var args = slice.call(arguments, 2);
|
||||
return setTimeout(function(){ return func.apply(func, args); }, wait);
|
||||
};
|
||||
|
||||
// Defers a function, scheduling it to run after the current call stack has
|
||||
// cleared.
|
||||
_.defer = function(func) {
|
||||
return _.delay.apply(_, [func, 1].concat(_.rest(arguments)));
|
||||
return _.delay.apply(_, [func, 1].concat(slice.call(arguments, 1)));
|
||||
};
|
||||
|
||||
// Returns the first function passed as an argument to the second,
|
||||
@@ -409,7 +409,7 @@
|
||||
// conditionally execute the original function.
|
||||
_.wrap = function(func, wrapper) {
|
||||
return function() {
|
||||
var args = [func].concat(_.toArray(arguments));
|
||||
var args = [func].concat(slice.call(arguments));
|
||||
return wrapper.apply(wrapper, args);
|
||||
};
|
||||
};
|
||||
@@ -417,9 +417,9 @@
|
||||
// Returns a function that is the composition of a list of functions, each
|
||||
// consuming the return value of the function that follows.
|
||||
_.compose = function() {
|
||||
var funcs = _.toArray(arguments);
|
||||
var funcs = slice.call(arguments);
|
||||
return function() {
|
||||
var args = _.toArray(arguments);
|
||||
var args = slice.call(arguments);
|
||||
for (var i=funcs.length-1; i >= 0; i--) {
|
||||
args = [funcs[i].apply(this, args)];
|
||||
}
|
||||
@@ -450,7 +450,7 @@
|
||||
|
||||
// Extend a given object with all the properties in passed-in object(s).
|
||||
_.extend = function(obj) {
|
||||
each(_.rest(arguments), function(source) {
|
||||
each(slice.call(arguments, 1), function(source) {
|
||||
for (var prop in source) obj[prop] = source[prop];
|
||||
});
|
||||
return obj;
|
||||
@@ -673,7 +673,7 @@
|
||||
// A method to easily add functions to the OOP wrapper.
|
||||
var addToWrapper = function(name, func) {
|
||||
wrapper.prototype[name] = function() {
|
||||
var args = _.toArray(arguments);
|
||||
var args = slice.call(arguments);
|
||||
unshift.call(args, this._wrapped);
|
||||
return result(func.apply(_, args), this._chain);
|
||||
};
|
||||
|
||||
Reference in New Issue
Block a user