This is the string Option 1|false|Option 2|false|Option 3|false|Option 4|true I want to convert it to array of objects like this
Is This Possible In javaScript Nodejs???? thanks in Advance.
[
{
"option": "Option 1",
"value": false
},
{
"option": "Option 2",
"value": false
},
{
"option": "Option 3",
"value": false
},
{
"option": "Option 4",
"value": true
}
]
You could split and iterate the array.
const
string = 'Option 1|false|Option 2|false|Option 3|false|Option 4|true',
result = [];
for (let i = 0, a = string.split('|'); i < a.length; i += 2) {
const
option = a[i],
value = JSON.parse(a[i + 1]);
result.push({ option, value });
}
console.log(result);
You can use .match() on the string with a regular expression to get an array of the form:
[["Option 1", "false"], ...]
And then map each key-value into an object like so:
const str = "Option 1|false|Option 2|false|Option 3|false|Option 4|true";
const res = str.match(/[^\|]+\|[^\|]+/g).map(
s => (([option, value]) => ({option, value: value==="true"}))(s.split('|'))
);
console.log(res);
const options = 'Option 1|false|Option 2|false|Option 3|false|Option 4|true';
const parseOptions = options => options.split('|').reduce((results, item, index) => {
if (index % 2 === 0) {
results.push({ option: item });
} else {
results[results.length - 1].value = item === 'true';
}
return results;
}, []);
console.log(parseOptions(options));
str='Option 1|false|Option 2|false|Option 3|false|Option 4|true';
str=str.split('|');
result=[];
for(var i=0;i<str.length;i += 2){
result.push({"option":str[i],"value":str[i+1]=="true"?true:false})
}
console.log(result)
str[i+1]=="true"?true:false there is no need for a ternary here as str[i+1]=="true" gives the same resultI have a slightly more functional solution to the problem, which I think is more semantic
const str = 'Option 1|false|Option 2|false|Option 3|false|Option 4|true';
const parsed = str
.match(/[^\|]+\|[^\|]+/g)
.map(matchedValues => {
const [option, value] = matchedValues.split('|');
return Object.fromEntries([['option', option], ['value', JSON.parse(value)]]);
})
console.log(parsed);
JSON.parse but idea is still the same..With Array.prototype.reduce you can morph the array from String.prototype.split into an object.
const str = "Option 1|false|Option 2|false|Option 3|false|Option 4|true";
const arr = str.split('|')
const obj = arr.reduce((carry, elem, index, orig) => {
if (index % 2) { return carry }
carry.push({"option": orig[index], "value": !!orig[index+1]});
return carry;
}, [])
console.log(obj)Or a more exotic approach with double split
const str = "Option 1|false|Option 2|false|Option 3|false|Option 4|true";
const arr = (str+"|").match(/[^|]+\|[^|]+(?=\|)/g);
const res = arr.reduce((carry, item) => {
let [option, value] = item.split('|');
carry.push({option, value: !!value});
return carry;
}, [])
console.log(res)
const result = "Option 1|false|Option 2|false|Option 3|false|Option 4|true".split('|').map((option, i, a) => i % 2 ? null : {option, value: a[i+1]}).filter(x => x)