60 lines
1.2 KiB
JavaScript
60 lines
1.2 KiB
JavaScript
/*!
|
|
* has-values <https://github.com/jonschlinkert/has-values>
|
|
*
|
|
* Copyright (c) 2014-2015, 2017, Jon Schlinkert.
|
|
* Released under the MIT License.
|
|
*/
|
|
|
|
'use strict';
|
|
|
|
var typeOf = require('kind-of');
|
|
var isNumber = require('is-number');
|
|
|
|
module.exports = function hasValue(val) {
|
|
// is-number checks for NaN and other edge cases
|
|
if (isNumber(val)) {
|
|
return true;
|
|
}
|
|
|
|
switch (typeOf(val)) {
|
|
case 'null':
|
|
case 'boolean':
|
|
case 'function':
|
|
return true;
|
|
case 'string':
|
|
case 'arguments':
|
|
return val.length !== 0;
|
|
case 'error':
|
|
return val.message !== '';
|
|
case 'array':
|
|
var len = val.length;
|
|
if (len === 0) {
|
|
return false;
|
|
}
|
|
for (var i = 0; i < len; i++) {
|
|
if (hasValue(val[i])) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
case 'file':
|
|
case 'map':
|
|
case 'set':
|
|
return val.size !== 0;
|
|
case 'object':
|
|
var keys = Object.keys(val);
|
|
if (keys.length === 0) {
|
|
return false;
|
|
}
|
|
for (var i = 0; i < keys.length; i++) {
|
|
var key = keys[i];
|
|
if (hasValue(val[key])) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
default: {
|
|
return false;
|
|
}
|
|
}
|
|
};
|