can
Version:
MIT-licensed, client-side, JavaScript framework that makes building rich web applications easy.
109 lines (108 loc) • 3.66 kB
JavaScript
/*!
* CanJS - 2.3.34
* http://canjs.com/
* Copyright (c) 2018 Bitovi
* Mon, 30 Apr 2018 20:56:51 GMT
* Licensed MIT
*/
/*can@2.3.34#util/domless/domless*/
define([
'can/util/can',
'can/util/attr',
'can/util/each',
'can/util/makeArray'
], function (can, attr) {
var core_trim = String.prototype.trim;
var rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g;
function likeArray(obj) {
return typeof obj.length === 'number';
}
function flatten(array) {
return array.length > 0 ? Array.prototype.concat.apply([], array) : array;
}
can.isArray = function (arr) {
if (Array.isArray) {
return Array.isArray(arr);
}
return Object.prototype.toString.call(arr) === '[object Array]';
};
can.isFunction = function () {
if (typeof document !== 'undefined' && typeof document.getElementsByTagName('body') === 'function') {
return function (value) {
return Object.prototype.toString.call(value) === '[object Function]';
};
} else {
return function (value) {
return typeof value === 'function';
};
}
}();
can.trim = core_trim && !core_trim.call('\uFEFF\xA0') ? function (text) {
return text == null ? '' : core_trim.call(text);
} : function (text) {
return text == null ? '' : (text + '').replace(rtrim, '');
};
can.extend = function () {
var options, name, src, copy, copyIsArray, clone, target = arguments[0] || {}, i = 1, length = arguments.length, deep = false;
if (typeof target === 'boolean') {
deep = target;
target = arguments[1] || {};
i = 2;
}
if (typeof target !== 'object' && !can.isFunction(target)) {
target = {};
}
if (length === i) {
target = this;
--i;
}
for (; i < length; i++) {
if ((options = arguments[i]) != null) {
for (name in options) {
src = target[name];
copy = options[name];
if (target === copy) {
continue;
}
if (deep && copy && (can.isPlainObject(copy) || (copyIsArray = can.isArray(copy)))) {
if (copyIsArray) {
copyIsArray = false;
clone = src && can.isArray(src) ? src : [];
} else {
clone = src && can.isPlainObject(src) ? src : {};
}
target[name] = can.extend(deep, clone, copy);
} else if (copy !== undefined) {
target[name] = copy;
}
}
}
}
return target;
};
can.map = function (elements, callback) {
var values = [], putValue = function (val, index) {
var value = callback(val, index);
if (value != null) {
values.push(value);
}
};
if (likeArray(elements)) {
for (var i = 0, l = elements.length; i < l; i++) {
putValue(elements[i], i);
}
} else {
for (var key in elements) {
putValue(elements[key], key);
}
}
return flatten(values);
};
can.proxy = function (cb, that) {
return function () {
return cb.apply(that, arguments);
};
};
can.attr = attr;
return can;
});