vue input框數字后保留兩位小數正則

<el-input

type="text"

v-model.trim="ruleForm2.marketPrice"

maxlength="10"

@keyup.native="ruleForm2.marketPrice =ruleForm2.marketPrice = ruleForm2.marketPrice.replace(/[^\d.]/g,'');

ruleForm2.marketPrice = ruleForm2.marketPrice.replace(/\.{2,}/g,'.');

ruleForm2.marketPrice = ruleForm2.marketPrice.replace(/^\./g,'');

ruleForm2.marketPrice = ruleForm2.marketPrice.replace('.','$#$').replace(/\./g,'').replace('$#$','.');

ruleForm2.marketPrice = ruleForm2.marketPrice.replace(/^(\-)*(\d+)\.(\d\d).*$/,'$1$2.$3');

"

></el-input>

 

 

function clearNoNum(obj)

{

//先把非數字的都替換掉，除了數字和.

obj.value = obj.value.replace(/[^\d.]/g,"");

//保證只有出現一個.而沒有多個.

obj.value = obj.value.replace(/\.{2,}/g,".");

//必須保證第一個為數字而不是.

obj.value = obj.value.replace(/^\./g,"");

//保證.只出現一次，而不能出現兩次以上

obj.value = obj.value.replace(".","$#$").replace(/\./g,"").replace("$#$",".");

//只能輸入兩個小數

obj.value = obj.value.replace(/^(\-)*(\d+)\.(\d\d).*$/,'$1$2.$3');

}