Javascript trim space removal function implementation code

<Input type = "text" name = "mytxt" value = "12345678"/> <input type = "button" name = "cmd1" onclick = "mytxt2.value = mytxt. value. trim () "value =" Remove spaces on both sides "/> <input type =" text "name =" mytxt2 "/> <input type =" button "name =" cmd1 "onclick =" mytxt3.value = mytxt. value. ltrim () "value =" leading space on the left "/> <input type =" text "name =" mytxt3 "/> <input type =" button "name =" cmd1 "onclick =" mytxt4.value = mytxt. value. rtrim () "value =" Remove right space "/> <input type =" text "name =" mytxt4 "/>
[Ctrl + A select all Note: If you need to introduce external Js, You need to refresh it to execute]
You can write a function as follows:
Copy codeThe Code is as follows:
<Script type = "text/javascript">
Function trim (str) {// Delete spaces between the left and right sides
Return str. replace (/(^ \ s *) | (\ s * $)/g ,"");
}
Function ltrim (str) {// Delete the left space
Return str. replace (/(^ \ s *)/g ,"");
}
Function rtrim (str) {// Delete the right space
Return str. replace (/(\ s * $)/g ,"");
}
</Script>