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鍍金池/ 問答/ HTML問答
愚念 回答

最好給下代碼Demo,這樣沒法解決

厭遇 回答

經(jīng)過大半天的研究,終于找到了解決辦法

$timeout(function () {

}, 0)

加上這個在外層就ok了

悶騷型 回答

傳入的數(shù)據(jù)帶雙引號,被認(rèn)為是字符串

拼未來 回答

1、數(shù)據(jù)量多引起的內(nèi)存占用嚴(yán)重,這個優(yōu)化點在于減少數(shù)據(jù)列表,難道你的頁面需要展示5000條數(shù)據(jù)嗎?展示5000條數(shù)據(jù)會引起dom渲染卡頓,和vue的關(guān)系不大。并且保持單條數(shù)據(jù)足夠簡單,簡化vue實例對象的數(shù)據(jù)量。
2、路由切換里的keep-alive會緩存實例。你可以取消keep-alive。

好難瘦 回答

根據(jù)其他數(shù)據(jù)啊,比如user_id

我不懂 回答

interface可以動態(tài)的增加新的類型約束,但是似乎不能復(fù)寫已有類定義屬性。

你這種情況是不是使用class interface更符合預(yù)期(abstract class),一般接口是面向切邊來講的,一般不會通過繼承接口來實現(xiàn)屬性擴展的吧

拙見輕噴。

話寡 回答

據(jù)我的經(jīng)驗雖然沒有官方的解法,但這里有一替代方案可以做到。為個達(dá)到這個目的,你可以編寫一個 Viewer Tool,并參考下面的示例覆寫 handleDoubleClick 這個函數(shù),如對 Viewer Tool 不是很了解的朋友可以參考這篇文章自定義 Viewer Tool 與 Viewer 交互。

this.handleDoubleClick = function(event, button) {
  return true;
}; 
小曖昧 回答

猜測問題中的 methodName 是一個 Symbol 值。

Symboles6 引入的一種新的原始數(shù)據(jù)類型,表示獨一無二的值。它由 Symbol 函數(shù)生成,即:

let prop = Symbol()

一個對象中,如果屬性名Symbol 類型(傳統(tǒng)寫法里,屬性名為字符串類型),可以保證不會與其他屬性名發(fā)生沖突。而此時使用它的語法規(guī)則為:
在對象的內(nèi)部,Symbol 值必須放在方括號之中。即題中的 [methodName]。

怣痛 回答

我都是用rem,淘寶的那套方案

兔寶寶 回答

因為執(zhí)行wx.login也是需要時間的

撥弦 回答

鼠標(biāo)松開事件:mouseup,對應(yīng)vue寫在html元素上時@mouseup。這些是事件的基礎(chǔ)知識,可以百度一下的

孤島 回答

再給后臺上傳圖片路徑,可是獲取的圖片路徑一直是64位編碼的,后臺只要正常的圖片路徑

首先,這不是 base64編碼的路徑,這就是base64編碼之后的圖片實體,準(zhǔn)確的說是 base64編碼的DATA URI你通過H5的 File API拿到這一大坨DATA URI是沒問題的;

然后,"后臺只要正常的圖片路徑" 這是扯犢子,前端上傳個本地的 URL 路徑(比如c://assets/pic1.jpg)給后臺是沒有意義的,后臺需要的是你上面的那一大坨base64 URI,他需要自己decode


const fs = require('fs');
const path = require('path');

const baseStr = "data:image/png;base64,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";

function fileSaver(base64Str, filename = 'your_file_name', outputPath) {
    return new Promise((resolve, reject) => {
        const data = base64Str.split(',')[1];
        const buff = new Buffer(data, 'base64');
        const type = base64Str.match(/(?:image\/)(\w+)(?=;)/)[1];
        const savePath = path.resolve(outputPath, `${filename}.${type}`);

        fs.writeFile(savePath, buff, (err) => {
            if (err) {
                return reject(err);
            }
            return resolve(savePath);
        })
    })
}

fileSaver(baseStr, '2', './').then(
    (filepath) => console.log('File saved successfully,當(dāng)前遠(yuǎn)程地址是:%s', filepath ),
    (err) => console.log('File saved failed, resean : ' + err)
);
雨萌萌 回答
  1. 客戶端禁用cookie,服務(wù)端setcookie會失敗
  2. session以來session_id,但不是必須以來cookie,傳送會話ID
  3. 頁面特別多的話,封裝函數(shù)或者類來統(tǒng)一調(diào)用
  4. 不一定,看你如何使用,你既可以setcookie設(shè)置cookie,通過$_COOKIE獲取cookie,也可以使用$_SESSION,cookie存儲在客戶端,相對來說安全性沒有session好,瀏覽器端cookie存儲數(shù)據(jù)大小有限制等
淺淺 回答
 var filename = "./src/pages/scene/register/register.ejs";
    //ext = /[^.]+$/.exec(filename);
    ext = filename.split('.').pop();
    console.log(ext);


氕氘氚 回答

x,y,z的值是這個,沒有問題啊。

圖片描述

瘋子范 回答

給多點信息吧,要不就看下div.headline-content 類刷新后有沒有作用上?chrome調(diào)試工具看下元素computed 的屬性,看下那幾個CSS屬性是不是真的作用上了.

厭遇 回答

在上例代碼中,確實拿不到,寫在外面就拿到了,已解決,由于自己粗心,抱歉