javascript - Jquery Array - 如何将多个索引初始化压缩为一行代码

Question

下面的5行可以压缩成一个单行数组吗？

var exmplArray = [];
exmplArray['hours'] = 0;
exmplArray['overtime'] = 0;
exmplArray['income'] = 0;
exmplArray['expenditure'] = 0;

我已尝试以下操作，但出现错误:“ Uncaught ReferenceError :赋值中的左侧无效”

var exmplArray = ['hours' = 0, 'overtime' = 0, 'income' = 0, 'expenditure' = 0];

有什么想法吗？

Answer 1

当您需要 JavaScript 中的“哈希”时，您应该使用对象 {}:

var example = {};
example['hours'] = 0;
example['overtime'] = 0;
example['income'] = 0;
example['expenditure'] = 0;

或

// the quote could be ommitted.
var example = { 'hours': 0, 'overtime': 0, 'income': 0, 'expenditure': 0 };