Two ways to execute applets in sequence
1. The callback function is executed, and the latter method is written into the previous callback function to achieve sequential execution. The disadvantage is that there are too many nesting and the code is confused.
-await Execute synchronously, this method waits for the previous method to be executed before continuing to execute subsequent execution. Good code readability
Taking checking text security as an example, two different codes are given for reference
Callback method
/**
* Synchronously check whether sensitive words are included
*/
// async function checkString(content) {
// try {
// var res = await ({
// name: 'checkString',
// data: {
// content: content,
// }
// });
// if ( == 0)
// return true;
// return false;
// } catch (err) {
// (err);
// return false;
// }
// }
// pubcom: async function (e) {
// ({
// title: 'Loading', // mask: true
// })
// var that = this
// var doc_id =
// var content =
// var formId = ;
// if (!content) {
// return
// }
// var isCheck = await (content);
// if (!isCheck) {
// ({
// title: 'Contains sensitive words', // image: "/assets/icon/",
// });
// return
// }
//Subsequent code
async-await
/**
* Asynchronous check
*/
function checkString(content,success,fail){
({
name: 'checkString',
data: {
content: content,
}
}).then(res => {
(res);
if ( == 0)
success(res);
}).catch(err => {
(err);
fail(err);
});
}
pubcom: function (e) {
({
title: 'loading',
mask: true
})
var that = this
var content =
if (!content) {
return
}
(content, function (res) {
//Success code }, function (err) {
//fail ({
title: 'Contains sensitive words',
image: "/assets/icon/",
});
return});
},
Summarize
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