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A concise version of common methods of Javascript string objects_Basic knowledge

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2016-05-16 16:42:581125browse
var a = "abcDEfGgdefg32asdf38";
document.write("原始:"+a+"<br />")
document.write("粗体:"+a.bold()+"<br />");
document.write("大号:"+a.big()+"<br />");
document.write("斜体:"+a.italics()+"<br />");
document.write("删除线:"+a.strike()+"<br />");
document.write("字体大小:"+a.fontsize(10)+"<br />");
document.write("字体颜色:"+a.fontcolor("#ff0000")+"<br />");
document.write("上标:"+a.sup()+"<br />");
document.write("下标:"+a.sub()+"<br />");
document.write("大写:"+a.toUpperCase()+"<br />");
document.write("大写:"+a.toLowerCase()+"<br />");
document.write("返回索引字符:"+a.charAt(3)+"<br />");//这里应该是"D"
document.write("返回索引:"+a.indexOf("f")+"<br />");//这里应该是5
document.write("返回索引(逆向查找):"+a.lastIndexOf("f")+"<br />");//这里应该是9
document.write("查找字符串:"+a.search("f")+"<br />");//这里应该是5,与indexOf相同
document.write("替换字符串:"+a.replace("a","A")+"<br />");//把字符串中的a替换成A
document.write("返回子串:"+a.slice(1,3)+"<br />");//应该是bc,返回从索引1到3-1的子串
document.write("分割字符串:"+a.split("D").toString()+"<br />");//把D作为分割符,分割字符串,返回数组
document.write("返回子串:"+a.substr(1,2)+"<br />");//返回子串,从索引1开始,长度为2,这里就是bc
document.write("返回子串:"+a.substring(1,3)+"<br />");//与sclice()相同,返回索引1到3-1的子串
document.write("匹配:"+a.match(/\d+/)+"<br />");//正则匹配,返回匹配的结果,这里是32

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