Javascript 为什么我的 toFixed() 函数不起作用？
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Why is my toFixed() function not working?
提问by Ben
Here's the relevant code. I've confirmed with the alert that the correct number is saved, it's just not being changed to 2 decimal places.
这是相关的代码。我已经通过警报确认保存了正确的数字，只是没有更改为小数点后两位。
if ($(this).attr('name') == 'time') {
var value = $(this).val();
parseFloat(value).toFixed(2);
alert(value);
editEntry.time = value;
}
回答by Marc B
You're not assigning the parsed float back to your value var:
您没有将解析的浮点数分配回您的值 var：
value = parseFloat(value).toFixed(2);
should fix things up.
应该解决问题。
回答by Pulath Yaseen
I tried function toFixed(2) many times. Every time console shows "toFixed() is not a function".
我多次尝试函数 toFixed(2) 。每次控制台显示“toFixed() 不是函数”。
but how I resolved is By using Math.round()
但我的解决方法是使用 Math.round()
eg:
例如：
if ($(this).attr('name') == 'time') {
var value = parseFloat($(this).val());
value = Math.round(value*100)/100; // 10 defines 1 decimals, 100 for 2, 1000 for 3
alert(value);
}
this thing surely works for me and it might help you guys too...
这东西肯定对我有用，它也可能对你们有帮助......
回答by KARTHIKEYAN.A
Your conversion data is response[25] and follow the below steps.
您的转化数据是 response[25] 并按照以下步骤操作。
var i = parseFloat(response[25]).toFixed(2)
console.log(i)//-6527.34
回答by Vlad
Example simple (worked):
示例简单（有效）：
var a=Number.parseFloat($("#budget_project").val()); // from input field
var b=Number.parseFloat(html); // from ajax
var c=a-b;
$("#result").html(c.toFixed(2)); // put to id='result' (div or others)
回答by Mauricio Parizotto
document.getElementById("EDTVALOR").addEventListener("change", function() {
this.value = this.value.replace(",", ".");
this.value = parseFloat(this.value).toFixed(2);
if (this.value < 0) {
this.value = 0;
}
this.value = this.value.replace(".", ",");
this.value = this.value.replace("NaN", "0");
});
