commonJS — 字符串操作（for String）

for String

代码

/**
* Created by laixiangran on 2016/1/24
* homepage：http://www.cnblogs.com/laixiangran/
* for String
*/

(function(undefined) {

var com = window.COM = window.COM || {};

com.$S = {
// 将字符串中"-"后的小写字符进行大写，如：camelize("background-color") 输出为"backgroundColor"
camelize: function(str) {
return str.replace(/-([a-z])/ig, function(all, letter) {
return letter.toUpperCase();
});
},

// 去掉字符串首尾空格
trim: function(str) {
return str.replace(/^\s+|\s+$/g, "");
},

// RGB转十六进制
rgbToHex: function(str) {
// 十六进制颜色值的正则表达式
var reg = /^#([0-9a-fA-f]{3}|[0-9a-fA-f]{6})$/;
if (/^(rgb|RGB)/.test(str)) {
var aColor = str.replace(/(?:\(|\)|rgb|RGB)*/g,"").split(",");
var strHex = "#";
for (var i= 0, len = aColor.length; i < len; i++) {
var hex = Number(aColor[i]).toString(16);
if (hex === "0") {
hex += hex;
}
strHex += hex;
}
if (strHex.length !== 7) {
strHex = str;
}
return strHex;
} else if (reg.test(str)) {
var aNum = str.replace(/#/,"").split("");
if (aNum.length === 6) {
return str;
} else if (aNum.length === 3) {
var numHex = "#";
for (var j= 0, l = aNum.length; j < l; j++) {
numHex += (aNum[j] + aNum[j]);
}
return numHex;
}
} else {
return str;
}
},

// 十六进制转RGB
hexToRgb: function(str) {
// 十六进制颜色值的正则表达式
var reg = /^#([0-9a-fA-f]{3}|[0-9a-fA-f]{6})$/;
var sColor = str.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;
}

// 处理六位的颜色值
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;
}
}
};
}());

参考