I need to create an array of object literals like this:
var myColumnDefs = [
{key:"label", sortable:true, resizeable:true},
{key:"notes", sortable:true,resizeable:true},......
In a loop like this:
for (var i = 0; i < oFullResponse.results.length; i++) {
console.log(oFullResponse.results[i].label);
}
The value of key should be results[i].label in each element of the array.
var arr = [];
var len = oFullResponse.results.length;
for (var i = 0; i < len; i++) {
arr.push({
key: oFullResponse.results[i].label,
sortable: true,
resizeable: true
});
}
var obj to make the code clearer, of course you can skip it, you can write the whole script in one line if you wish :)
RaYell's answer is good - it answers your question.
It seems to me though that you should really be creating an object keyed by labels with sub-objects as values:
var columns = {};
for (var i = 0; i < oFullResponse.results.length; i++) {
var key = oFullResponse.results[i].label;
columns[key] = {
sortable: true,
resizeable: true
};
}
// Now you can access column info like this.
columns['notes'].resizeable;
The above approach should be much faster and idiomatic than searching the entire object array for a key for each access.
You can do something like that in ES6.
new Array(10).fill().map((e,i) => {
return {idx: i}
});
If you want to go even further than @tetra with ES6 you can use the Object spread syntax and do something like this:
const john = { firstName: "John", lastName: "Doe" };
const people = new Array(10).fill().map((e, id) => ({ ...john, id }));
This will work:
var myColumnDefs = new Object();
for (var i = 0; i < oFullResponse.results.length; i++) {
myColumnDefs[i] = ({key:oFullResponse.results[i].label, sortable:true, resizeable:true});
}
In the same idea of Nick Riggs but I create a constructor, and a push a new object in the array by using it. It avoid the repetition of the keys of the class:
var arr = [];
var columnDefs = function(key, sortable, resizeable){
this.key = key;
this.sortable = sortable;
this.resizeable = resizeable;
};
for (var i = 0; i < len; i++) {
arr.push((new columnDefs(oFullResponse.results[i].label,true,true)));
}
I'd create the array and then append the object literals to it.
var myColumnDefs = [];
for ( var i=0 ; i < oFullResponse.results.length; i++) {
console.log(oFullResponse.results[i].label);
myColumnDefs[myColumnDefs.length] = {key:oFullResponse.results[i].label, sortable:true, resizeable:true};
}
var myColumnDefs = new Array();
for (var i = 0; i < oFullResponse.results.length; i++) {
myColumnDefs.push({key:oFullResponse.results[i].label, sortable:true, resizeable:true});
}
[] instead of new Array().