/**
* Created by laixiangran on 2016/01/07.
* Array擴(kuò)展
*/
(function() {
// 遍歷數(shù)組
if (typeof Array.prototype.forEach != "function") {
Array.prototype.forEach = function (fn, context) {
for (var i = 0; i < this.length; i++) {
if (typeof fn === "function" && Object.prototype.hasOwnProperty.call(this, i)) {
fn.call(context, this[i], i, this);
}
}
};
}
// 讓數(shù)組中的每一個(gè)元素調(diào)用給定的函數(shù)，然后把得到的結(jié)果放到新數(shù)組中返回
if (typeof Array.prototype.map != "function") {
Array.prototype.map = function (fn, context) {
var arr = [];
if (typeof fn === "function") {
for (var k = 0, length = this.length; k < length; k++) {
arr.push(fn.call(context, this[k], k, this));
}
}
return arr;
};
}
// 把符合條件的元素放到一個(gè)新數(shù)組中返回
if (typeof Array.prototype.filter != "function") {
Array.prototype.filter = function (fn, context) {
var arr = [];
if (typeof fn === "function") {
for (var k = 0, length = this.length; k < length; k++) {
fn.call(context, this[k], k, this) && arr.push(this[k]);
}
}
return arr;
};
}
// 如果數(shù)組中的每個(gè)元素都能通過給定的函數(shù)的測(cè)試，則返回true，反之false
if (typeof Array.prototype.every != "function") {
Array.prototype.every = function (fn, context) {
var passed = true;
if (typeof fn === "function") {
for (var k = 0, length = this.length; k < length; k++) {
if (passed === false) break;
passed = !!fn.call(context, this[k], k, this);
}
}
return passed;
};
}
// 類似every函數(shù)，但只要有一個(gè)通過給定函數(shù)的測(cè)試就返回true
if (typeof Array.prototype.some != "function") {
Array.prototype.some = function (fn, context) {
var passed = false;
if (typeof fn === "function") {
for (var k = 0, length = this.length; k < length; k++) {
if (passed === true) break;
passed = !!fn.call(context, this[k], k, this);
}
}
return passed;
};
}
// 返回元素在數(shù)組的索引，沒有則返回-1，從左到右
if (typeof Array.prototype.indexOf != "function") {
Array.prototype.indexOf = function (item, index) {
var n = this.length,
i = index == null ? 0 : index < 0 ? Math.max(0, n + index) : index;
for (; i < n; i++) {
if (i in this && this[i] === item) {
return i
}
}
return -1
};
}
// 返回元素在數(shù)組的索引，沒有則返回-1，從右到左
if (typeof Array.prototype.lastIndexOf != "function") {
Array.prototype.lastIndexOf = function (item, index) {
var n = this.length,
i = index == null ? n-1 : index < 0 ? Math.max(0, n + index) : index;
for (; i >= 0; i--) {
if (i in this && this[i] === item) {
return i;
}
}
return -1;
};
}
// 讓數(shù)組元素依次調(diào)用給定函數(shù)，最后返回一個(gè)值（從左到右）
if (typeof Array.prototype.reduce != "function") {
Array.prototype.reduce = function (callback, initialValue) {
var previous = initialValue, k = 0, length = this.length;
if (typeof initialValue === "undefined") {
previous = this[0];
k = 1;
}
if (typeof callback === "function") {
for (k; k < length; k++) {
this.hasOwnProperty(k) && (previous = callback(previous, this[k], k, this));
}
}
return previous;
};
}
// 讓數(shù)組元素依次調(diào)用給定函數(shù)，最后返回一個(gè)值（從右到左）
if (typeof Array.prototype.reduceRight != "function") {
Array.prototype.reduceRight = function (callback, initialValue) {
var length = this.length, k = length - 1, previous = initialValue;
if (typeof initialValue === "undefined") {
previous = this[length - 1];
k--;
}
if (typeof callback === "function") {
for (k; k > -1; k-=1) {
this.hasOwnProperty(k) && (previous = callback(previous, this[k], k, this));
}
}
return previous;
};
}
// 去掉重復(fù)項(xiàng)（唯一性），返回新數(shù)組
if (typeof Array.prototype.uniq != "function") {
Array.prototype.uniq = function() {
var arr = [];
arr[0] = this[0];
for (var i = 1; i < this.length; i++) {
if (arr.indexOf(this[i]) == -1) {
arr.push(this[i]);
}
}
return arr;
};
}
// 指定刪除數(shù)組中某值
if (typeof Array.prototype.remove != "function") {
Array.prototype.remove = function(item) {
for (var i = this.length; i >= 0; i--) {
if (item === this[i]) {
this.splice(i, 1);
}
}
return this;
};
}
// 打亂數(shù)組順序
if (typeof Array.prototype.shuffle != "function") {
Array.prototype.shuffle = function() {
var i = this.length;
while (i) {
var j = Math.floor(Math.random()*i);
var t = this[--i];
this[i] = this[j];
this[j] = t;
}
return this;
};
}
// 求數(shù)組的最大值
if (typeof Array.prototype.max != "function") {
Array.prototype.max = function() {
return Math.max.apply({}, this)
};
}
// 求數(shù)組的最小值
if (typeof Array.prototype.max != "function") {
Array.prototype.min = function() {
return Math.min.apply({}, this)
};
} 

// 判斷是否為數(shù)組
if (typeof Array.prototype.isArray != "function") {
Array.prototype.isArray = function() {
return Object.prototype.toString.apply(this) === "[object Array]";
};
} 
}());

/**
* Created by laixiangran on 2015/12/12.
* String擴(kuò)展
*/
(function() {
// 十六進(jìn)制顏色值的正則表達(dá)式
var reg = /^#([0-9a-fA-f]{3}|[0-9a-fA-f]{6})$/;
// RGB顏色轉(zhuǎn)換為16進(jìn)制
if (typeof String.prototype.rgbToHex != "function") {
String.prototype.rgbToHex = function() {
var that = this;
if (/^(rgb|RGB)/.test(that)) {
var aColor = that.replace(/(?:\(|\)|rgb|RGB)*/g,"").split(",");
var strHex = "#";
for (var i=0; i<aColor.length; i++) {
var hex = Number(aColor[i]).toString(16);
if (hex === "0") {
hex += hex;
}
strHex += hex;
}
if (strHex.length !== 7) {
strHex = that;
}
return strHex;
}else if (reg.test(that)) {
var aNum = that.replace(/#/,"").split("");
if (aNum.length === 6){
return that;
}else if (aNum.length === 3) {
var numHex = "#";
for (var j=0; j<aNum.length; j++) {
numHex += (aNum[j]+aNum[j]);
}
return numHex;
}
}else{
return that;
}
};
}
// 16進(jìn)制顏色轉(zhuǎn)為RGB格式
if (typeof String.prototype.hexToRgb != "function") {
String.prototype.hexToRgb = function() {
var sColor = this.toLowerCase();
if (sColor && reg.test(sColor)) {
if (sColor.length === 4) {
var sColorNew = "#";
for (var i = 1; i < 4; i++) {
sColorNew += sColor.slice(i,i+1).concat(sColor.slice(i,i+1));
}
sColor = sColorNew;
}
// 處理六位的顏色值
var sColorChange = [];
for (var j=1; j<7; j+=2) {
sColorChange.push(parseInt("0x"+sColor.slice(j,j+2)));
}
return "RGB(" + sColorChange.join(",") + ")";
}else{
return sColor;
}
};
}
// 移除字符串首尾空白
if (typeof String.prototype.trim != "function") {
String.prototype.trim = function() {
return this.replace(/^\s+|\s+$/g, "");
};
}
}());