5 javascript documentation properties jsdoc
鉴于这个相当愚蠢的函数,应该如何为“范围”参数编写文档?
/**
* @param {number} value
* @param {Object} range
* @param {number} range['<']
* @param {number} range['<=']
* @param {number} range['>']
* @param {number} range['>=']
*/
function testIsInRange(value, range) {
var threshold;
if ((threshold = range['<'], threshold !== undefined) && !(value < threshold)) {
fail('Value must be less than ' + threshold);
}
if ((threshold = range['<='], threshold !== undefined) && !(value <= threshold)) {
fail('Value must be less than or equal to ' + threshold);
}
if ((threshold = range['>'], threshold !== undefined) && !(value > threshold)) {
fail('Value must be greater than ' + threshold);
}
if ((threshold = range['>='], threshold !== undefined) && !(value >= threshold)) {
fail('Value must be greater than or equal to ' + threshold);
}
}
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点符号和括号符号似乎都不起作用。属性类型(对象和数字)可以被识别,但它们的名称不能被识别。
类型可以指定为复杂对象:
/**
* @param {number} value
* @param {{'<': number, '<=': number, '>': number, '>=': number}} range
*/
function testIsInRange(value, range) {
...
}
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或者,解构可以提供帮助,尽管它需要将参数重命名为非符号名称:
/**
* @param {number} value
* @param {number} lt
* @param {number} lte
* @param {number} gt
* @param {number} gte
*/
function testIsInRange(value, {'<':lt, '<=':lte, '>':gt, '>=':gte}) {
...
}
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