Let's say I can get some data like below:
data = ["s=abc","t=123","a=567","b=789"]
How I can handle these data to obtain a url string like "?s=abc&t=123&a=567&b=789"
I write some code
for(i=0;i<data.length;i++){
data[i].split("=");
}
but stuck for a while.
Can anyone help me? by the way, the data.length may different each time.
Thanks.
How I can handle these data to obtain a url string like
"?s=abc&t=123&a=567&b=789"
Use join with & as glue. This will concat the elements of the array by using & as glue, then you can prepend ? to the resulting string.
var data = ["s=abc", "t=123", "a=567", "b=789"];
var params = '?' + data.join('&');
console.log(params);
document.write(params);Note: If your parameters contains special characters you can use encodeURIComponent to encode it.
If you need the params to be url encoded, use $.param( data);
You can just use join function. it converts arrays into strings then add the & as a delimiter then concatenate "?";
var new_data = '?'+data.join('&');
Loop through your data array and concatenate ampersand '&' with each element and remove last '&' using slice.
data = ["s=abc","t=123","a=567","b=789"];
link="?";
for(i=0;i<data.length;i++){
link+=data[i]+"&";
}
link=link.slice(0,-1);
console.log(link);
If you want to encode the value - if the values not already encoded
data = ["s=abc", "t=123", "a=567", "b=7 89"]
var params = data.map(function(item) {
return item.replace(/=(.*)/, function(m, value) {
return '=' + encodeURIComponent(value)
})
}).join('&');
snippet.log(params)<!-- Provides the `snippet` object, see http://meta.stackexchange.com/a/242144/134069 -->
<script src="http://tjcrowder.github.io/simple-snippets-console/snippet.js"></script>I would use a hash for the key/value pairs and leverage jQuery to serialize the params into a string you can use.
var serializedParams = {
s: 'abc',
t: '123',
a: '567',
b: '789'
};
$.param(serializedParams);
// Returns:
// s=abc&t=123&a=567&b=789
or you can just manually construct the string yourself.
var data = ["s=abc","t=123","a=567","b=789"];
data.join('&');
// Returns:
// s=abc&t=123&a=567&b=789
