var $ = require('../internals/export');
|
var isArray = require('../internals/is-array');
|
|
// eslint-disable-next-line es-x/no-object-isfrozen -- safe
|
var isFrozen = Object.isFrozen;
|
|
var isFrozenStringArray = function (array, allowUndefined) {
|
if (!isFrozen || !isArray(array) || !isFrozen(array)) return false;
|
var index = 0;
|
var length = array.length;
|
var element;
|
while (index < length) {
|
element = array[index++];
|
if (!(typeof element == 'string' || (allowUndefined && typeof element == 'undefined'))) {
|
return false;
|
}
|
} return length !== 0;
|
};
|
|
// `Array.isTemplateObject` method
|
// https://github.com/tc39/proposal-array-is-template-object
|
$({ target: 'Array', stat: true, sham: true, forced: true }, {
|
isTemplateObject: function isTemplateObject(value) {
|
if (!isFrozenStringArray(value, true)) return false;
|
var raw = value.raw;
|
return raw.length === value.length && isFrozenStringArray(raw, false);
|
}
|
});
|
