JS去空格总结
JS去掉空格
<script type="text/javascript"> //去左空格; function ltrim(s){ return s.replace(/(^\s*)/, ""); } //去右空格; function rtrim(s){ return s.replace(/(\s*$)/, "");} //去左右空格; function trim(s){ //s.replace(/(^\s*)|(\s*$)/, ""); return rtrim(ltrim(s)); } //====================================================================如果是去掉半角和全角空格就把 \s 替换成 [' '|' '] 就变成//去左空格;function ltrim(s){return s.replace(/(^[' '|' ']*)/, '');}//去右空格;function rtrim(s){return s.replace(/([' '|' ']*$)/, '');//=====================================================================function show(a){var f = trim(a)alert(f);alert(f.length); }</script><input type="text" id="admin" onblur="show(this.value)"/>??