搖曳的薔薇
2023-05-11 14:43:12
我有一個(gè)問題,如果我想向我的click屬性添加一個(gè)參數(shù),那么它會(huì)在呈現(xiàn)后立即調(diào)用該函數(shù)這是我的測試 html:return html` <button class="menu-btn" @click="${this._OpenSubMenu(1)}>test</button>" `;}和功能:_OpenSubMenu(test:number) { console.log("Hello") }Hello頁面呈現(xiàn)后立即輸出。那么如何在向我的函數(shù)添加參數(shù)的同時(shí)避免這種情況呢?
1 回答

慕田峪9158850
TA貢獻(xiàn)1794條經(jīng)驗(yàn) 獲得超7個(gè)贊
你需要讓你的函數(shù)返回一個(gè)函數(shù)。然后您的點(diǎn)擊函數(shù)將執(zhí)行返回的函數(shù),并且由于閉包仍然可以訪問參數(shù)。
例如..
_OpenSubMenu(test:number) {
var that = this;
return function () {
console.log("Hello");
//test is also a closure so you can use here
//that will equal this
}
}
如果你想訪問this,你也可以使用箭頭功能
_OpenSubMenu(test:number) {
return () => {
console.log("Hello");
//test is also a closure so you can use here
//this will also still be valid here
}
}
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