Question

我找到了一个函数，它使用逗号将数字值转换为数字值，以便轻松地向网页查看器显示大数字。不幸的是，我在网上找到的代码只能成功地使ONE变量等于任何值。由于我必须转换大量变量，因此制作几个不同的函数来实现这一点是不切实际的。我需要帮助修改函数，以便它可以获取一个值及其相应的变量，以便在收到逗号后存储它。

原始代码：

function commaSeparateNumber(val){
    while (/(\d+)(\d{3})/.test(val.toString())){
        val = val.toString().replace(/(\d+)(\d{3})/, '$1'+','+'$2');
    }
    //Whatever sole variable you want 
    = val;
}

我尝试（失败版本）的功能：

//define variables that need to be comma-ed.
var a = 234858912795;
var b = 148582954;
var c = 59928104585125612324;
//Array of variables to be comma-ed
var toComma = [a, b, c];
//Variables to store the value of the numbers with commas.
var aComma;
var bComma;
var cComma;
//Array of variables with comma
var Comma = [aComma, bComma, cComma];
//declare counter variable for the loop later.
var i = 0;
//function to comma numbers
function commaSeparateNumber(val, vari){
    while (/(\d+)(\d{3})/.test(val.toString())){
        val = val.toString().replace(/(\d+)(\d{3})/, '$1'+','+'$2');
    }
    //Here is the problem.  Ideally, I want something here so this works, and I can plug in a different variable and value every fraction of a second into this funciton.  I could just create multiple DIFFERENT functions, but I have a large number of variables that need to be comma-ed, so I want something like this current setup that works.
    vari = val;
}
//Interval calling the function with different numbers.
setInterval(update, 1000);
function update() {
    //When the loop successfully cycles through the numbers in the array, it restarted from the first value (0).
    if(i = toComma.length - 1){
        i = 0}
    //Runs function with desired variables.
    commaSeparateNumber(toComma[i], Comma[i])
    //Increases i to loop through with the next value.
    i++
}
//Testing for me to see the number pop up in console.  They return as "undefined" everytime.
setInterval(display, 1000)
function display() {
    console.log(aComma);
    console.log(bComma);
    console.log(cComma);
}

Answer 1

通用函数应返回一个值，而不是设置全局变量。

function commaSeparateNumber(val){
    while (/(\d+)(\d{3})/.test(val.toString())){
        val = val.toString().replace(/(\d+)(\d{3})/, '$1'+','+'$2');
    }
    //Whatever sole variable you want 
    return val;
}

然后你可以调用它并将结果分配给不同的变量：

comma[i] = commaSeparateNumber(toComma[i]);

使用1函数使一个值等于几个不同的变量

1 个答案: