JavaScript string Object (String) Basic usage

1.获取字符串的长度： var s = "Hello world" ; document.write( "length:" +s.length);2. Adding various styles to a string 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. Get the location where some content in the string first appears: 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. Content Replacement: var str= "Visit Microsoft!" document.write(str.replace(/Microsoft/, "W3School" ))

JavaScript string Object (String) Basic usage