Js implementations are replaced separately

problem description

put the contents of the array on the horizontal line of the string respectively
arr= [1Magazine 5];
str=" what do you mean _ _ don"t know _"

the environmental background of the problems and what methods you have tried

filling in the blanks wow

related codes

/ / Please paste the code text below (do not replace the code with pictures)

what result do you expect? What is the error message actually seen?

str1= what are you talking about? 1 5 don"t know 7

Javascript html html5 react.js
Apr.01,2022 
var idx=0;
str = str.replace(/\_+/g,()=>{return arr[idxPP];})


:<strong></strong><br>:


    var arr = [1,5,7];
    var str='_________';
    var newStr = new String()
    str.split("_").filter(i => i).map((v, i) => {
        newStr += v + arr[i]
    })
    console.log(newStr)

Previous: How can weex input enter a decimal point?

Next: HTTPS is configured in Nginx and cannot be accessed?

css mysql arrays josn react html typescript webpack npm sass R objective-c .net sql-server jquery python-3.x angularjs django angular excel regex iphone ajax linux xml pandas vba spring database wordpress string wpf xcode windows bash postgresql oracle multithreading eclipse list firebase algorithm macos forms image scala visual-studio azure bootstrap spring-boot react-native python-2.7 docker performance function winforms matlab powershell apache dataframe api sqlite numpy rest shell selenium flutter dart maven loops qt swing android-studio csv express file class tensorflow sorting codeigniter perl
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b378e2-2c085.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b378e2-2c085.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?