[Javascript] 숫자 키입력시 쉼표자동 입력

 

 

<input type="text" id="price1" name="price1" value="" onkeyup="inputNumberFormat(this);">
 
 
<script>
function comma(str) {
    str = String(str);
    return str.replace(/(\d)(?=(?:\d{3})+(?!\d))/g, '$1,');
}
 
function uncomma(str) {
    str = String(str);
    return str.replace(/[^\d]+/g, '');
} 
 
function inputNumberFormat(obj) {
    obj.value = comma(uncomma(obj.value));
}
 
function inputOnlyNumberFormat(obj) {
    obj.value = onlynumber(uncomma(obj.value));
//    obj.value = onlynumber(comma(obj.value));
}
 
function onlynumber(str) {
    str = String(str);
    return str.replace(/(\d)(?=(?:\d{3})+(?!\d))/g,'$1');
}
</script>

 

 

 

참고 : https://chobopark.tistory.com/175