??? ???? Cloud Firestore?? ????? ???? ?? ??
?? ??
Cloud Firestore? OrderBy ??? ???? ????? ???? ????? ?? ??? ???? ?? ??? ?????. ?? ?? ??. ?? ?? "AAA" ? "aaa"? ??? ???? "AAA", "BBB", "aaa" ? "bbb"? ???? ?? ??? ??? "AAA", "aaa", "BBB", ? "bbb".
????? ???? ?? ?? ??
Cloud Firestore? ????? ???? ?? ??? ?? ?? ???? ???? ????. ??? ???? ???? ??? ??? ??? ? ? ???? ????. ? ?? ??? myData? ?? ???? ?? ??? ?????. ? ?? ??? myData_insensitive? ????? ???? ?? ??? ???? ?????.
DocA: -> myData = 'AAA' -> myData_insensitive = 'AAA' DocB: -> myData = 'aaa' -> myData_insensitive = 'AAA' DocC: -> myData = 'BBB' -> myData_insensitive = 'BBB' DocD: -> myData = 'bbb' -> myData_insensitive = 'BBB'
??? ?? ? ??
?? myData_insensitive?? ??? ??? ? ???? ????? ???? ?? ??? ? ????. ??? ?? ???? myData?? ?? ???? ?????.
????? ???
???? ??? ?? ? ???? ??? ? ??????. ????? ???? ?? ??? ??? ?? ?? ? ???? ??? ??? ????? ?? ??? ?????. ? ?? ?? ??? caseFoldNormalize()? ???? ???? ????? ??? ??? ??? ???? ????.
<code class="javascript">caseFoldNormalize = function (s){
return s.normalize('NFKC').toLowerCase().toUpperCase().toLowerCase()
};
caseFoldDoc = function(doc, field_options) {
// Case fold desired document fields
if (field_options != null) {
for (var field in field_options) {
if (field_options.hasOwnProperty(field)) {
switch(field_options[field]) {
case 'case_fold':
if (doc.hasOwnProperty(field) && Object.prototype.toString.call(doc[field]) === "[object String]") {
doc[field.concat("_insensitive")] = caseFoldNormalize(doc[field])
}
break;
}
}
}
}
return doc;
}</code>
???? ?? ????? ???? ? ?? ???? ?? ?? ? ?? ????? ????? ?? ???? ?? ?????. ?? ???? ???????? ??? ? ???? ? ?????.
? ??? Cloud Firestore?? ????? ???? ?? ??? ????? ??? ??????? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!
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Undress AI Tool
??? ???? ??
Undresser.AI Undress
???? ?? ??? ??? ?? AI ?? ?
AI Clothes Remover
???? ?? ???? ??? AI ?????.
Clothoff.io
AI ? ???
Video Face Swap
??? ??? AI ?? ?? ??? ???? ?? ???? ??? ?? ????!
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SublimeText3 ??? ??
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SublimeText3 Mac ??
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