let data = {"terminalCode":"T0014077","terminalName":"測試門店4","licenseName":"山西太原XXX超市","terminalA ...
js 數組過濾空值 undefined null false NaN const arr undefined, null, , , false, NaN, , .filter Boolean arr gt , ...
2020-11-04 17:56 0 1270 推薦指數:
let data = {"terminalCode":"T0014077","terminalName":"測試門店4","licenseName":"山西太原XXX超市","terminalA ...
1. let data = {"terminalCode":"T0014077","terminalName":"測試門店4","licenseName":"山西太原XXX超市","terminalA ...
php對數組的操作已經很完善了,提供給我們很多內置函數用以操作數組,其實可以用array_filter函數對PHP數組中的控制進行過濾 array_filter() 函數用回調函數過濾數組中的值。該函數把輸入數組中的每個鍵值傳給回調函數。如果回調函數返回 true,則把輸入數組中的當前鍵值 ...
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for ( var i = 0 ;i<array.length;i++) { if (array[i] == "" || ty ...
如果我們想過濾數組里面的空值,例如null,,false,' '等等,可以使用php自帶的一個函數,使用起來非常方便簡潔: 結果如下: ...
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1.數組去重 var arr = ["1343", "rere", "1343", "rerd"]; Array.prototype.unique = function(){ var res = []; var json = {}; for(var i = 0; i < ...