関連ワード:  javascript error.includes is not a function    javascript error is not a function    javascript error foreach is not a function    javascript error split is not a function    javascript error addeventlistener is not a function    javascript error tofixed is not a function    javascript error appendchild is not a function    javascript error callback is not a function    javascript error indexof is not a function    javascript error trim is not a function  
結果 : javascript error.includes is not a function