JavaScript字符串對象(string)基本用法
阿新 • • 發佈：2017-09-10
lai 用法 size not work world plain big document con
1.獲取字符串的長度：
var s = "Hello world";
document.write("length:"+s.length);
2.為字符串添加各種樣式
var txt = "Some words";
document.write("<p>Big: " + txt.big() + "</p>")
document.write("<p>Small: " + txt.small() + "</p>")
document.write("<p>Bold: " + txt.bold() + "</p>")
document.write("<p>Italic: " + txt.italics() + "</p>")
document.write("<p>Blink: " + txt.blink() + " (does not work in IE)</p>")
document.write("<p>Fixed: " + txt.fixed() + "</p>")
document.write("<p>Strike: " + txt.strike() + "</p>")
document.write("<p>Fontcolor: "+ txt.fontcolor("Red") + "</p>")
document.write("<p>Fontsize: " + txt.fontsize(16) + "</p>")
document.write("<p>Link: " + txt.link("http://www.jb51.net") + "</p>")
3.獲取字符串中部分內容首次出現的位置：
var hw_text = "Hello world";
document.write(hw_text.indexOf("Hello")+"<br/>");
document.write(hw_text.indexOf("world")+"<br/>");
document.write(hw_text.indexOf("abc")+"<br/>");
4.內容替換：
var str="Visit Microsoft!"
document.write(str.replace(/Microsoft/,"W3School"))
JavaScript字符串對象(string)基本用法