I have Map in java like this :
"{one=Print, two=Email, three=Download, four=Send to Cloud}";
I need to convert above string to array in jquery and loop the array and fetch respective key and value
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what is the problem?singhakash– singhakash2016-11-30 06:54:25 +00:00Commented Nov 30, 2016 at 6:54
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show what you have tried so far ?Pavneet_Singh– Pavneet_Singh2016-11-30 06:56:43 +00:00Commented Nov 30, 2016 at 6:56
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Possible duplicate of converting hash map to arrayCoder– Coder2016-11-30 07:16:40 +00:00Commented Nov 30, 2016 at 7:16
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3 Answers
Use String#slice, String#trim , Array#forEach and String#split methods.
var str = "{one=Print, two=Email, three=Download, four=Send to Cloud}";
str
// remove the space at start and end
.trim()
// get string without `{` and `}`
.slice(1, -1)
// split by `,`
.split(',')
// iterate over the array
.forEach(function(v) {
// split by `=`
var val = v.trim().split('=');
console.log('key : ' + val[0] + ", value : " + val[1])
})UPDATE : If you want to generate an object then use Array#reduce method.
var str = "{one=Print, two=Email, three=Download, four=Send to Cloud}";
var res = str
.trim()
.slice(1, -1)
.split(',')
.reduce(function(obj, v) {
var val = v.trim().split('=');
// define object property
obj[val[0]] = val[1];
// return object reference
return obj;
// set initial parameter as empty object
}, {})
console.log(res)2 Comments
user3044552
.reduce() is not supported in ie8 is there any alternative for this
Pranav C Balan
@user3044552 : check polyfill : developer.mozilla.org/en/docs/Web/JavaScript/Reference/…
Here is a simple hack:
let arr = jsons.replace('{','').replace('}','').split(',')
arr.map((each)=>{let newVal = each.split('='); return {key: newVal[0], value: newVal[1]}})
Comments
Try this:
function convertString(string) {
return string.split(', ').map(function(a) {
var kvArr = a.split('=');
return {key: kvArr[0], value: kvArr[1]};
};
}
function convertString(string) {
string = string.slice(1, string.length - 1);
return string.split(', ').map(function(a) {
var kvArr = a.split('=');
return {key: kvArr[0], value: kvArr[1]};
});
}
alert(JSON.stringify(convertString("{one=Print, two=Email, three=Download, four=Send to Cloud}")));