sort a dictionary (or whatever key-value data structure in js) on word_number keys efficiently

Question

how do I sort a dictionary by key like

dict[\"word_21\"] = \"Hello Java\";
dict[\"word_22\"] = \"Hello World\";
dict[\"word_11\"] = \"Hello Javascript\";
         


        

Answer 1

Try this

var sorted = [];
for(var key in dict) {
    sorted[sorted.length] = key;
}
sorted.sort();

Sorting dict on its keys and writing it back to the object does not make sense to me, but here it goes:

function sortOnKeys(dict) {

    var sorted = [];
    for(var key in dict) {
        sorted[sorted.length] = key;
    }
    sorted.sort();

    var tempDict = {};
    for(var i = 0; i < sorted.length; i++) {
        tempDict[sorted[i]] = dict[sorted[i]];
    }

    return tempDict;
}

dict = sortOnKeys(dict);