JavaScript: RegExp + replace
We can use RegExp + replace to change Specific text into others we want.
This picture shows the result after we exchange:
Below is this project's code:
1 <!DOCTYPE html> 2 <html> 3 <head lang="en"> 4 <meta charset="UTF-8"> 5 <title>RegExp</title> 6 </head> 7 <script> 8 function strreplace(){ 9 var str=document.getElementById("str").value; 10 var newstr=str.replace(/paul/g,"Ringo"); 11 document.getElementById("demo").innerHTML = newstr; 12 } 13 </script> 14 <body> 15 请输入一串带有“paul”(小写)的单词串，不同单词用<br>空格隔开，点击“替换”，可将“paul”替换成“Ringo”. 16 <br><br><br>你可以复制这段字符进下框测试：paul like Spaul Paul paul 17 <br><br>会发现所有的“paul”都被替换成“Ringo”。 18 <br><br><br><input type="text" name="str" id="str"> 19 <input type="button" value="替换" onclick="strreplace()"> 20 <br><br>替换后：<p id="demo"></p> 21 </body> 22 </html>
