I have an array like this
arr=["japan","china","india"];
i want to convert it into a string like this
str="'japan','china','india'"
join() wouldnt fullfill my requirement as it gives result like below..
str="japan,china,india"
Any help pls....
Use reduce and continue adding to the accumulator.
let res = arr.reduce((acc,curr,ind) => acc += (ind == arr.length -1) ? `'${curr}'` :`'${curr}',` ,'')
Yop,
You can use something like this:
['japan', 'china', 'india'].map(country => `'${country}'`).toString();
// output: 'japan','china','india'
The .map will quote each element of your array, then the .toString will join all the array elements (you can use .join instead if you want another seperator between your elements).
When declaring variables always use var or let:
let arr = ["japan","china","india"];
let str = arr.map(x => "'" + x + "'").join(); // 'japan','china','india'
arr.reduce((acc,val, index) => {
if (index === 0 ) {
acc = acc + `'${val}'`
} else {
acc = acc + `, '${val}'`
}
return acc;
},'');
Try this:
<script>
let arr = ["japan", "china", "india"];
let str = '';
for (let i = 0; i < arr.length; i++) {
if (i < arr.length-1)
str += "\'" + arr[i] + "\'" + ",";
else
str += "\'" + arr[i] + "\'";
}
console.log(str);
</script>
