How to delete element from indexed array based on value
Example:
var add = { number1: 'hello' , number2: "Haii", number3: "Byee" };
Now I want to delete element which having value Haii.
Can we do it with out iterate using for loop.
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3 Answers
var add = {
number1: 'hello',
number2: "Haii",
number3: "Byee"
};
for (var x in add) {
if (add[x] == "Haii") {
add[x].remove();
}
}
Comments
Can we do it with out iterate using fir loop.
First, get all the keys which correspond to the value
Haii.var filteredKeys = Object.keys(add).filter(function(currentKey) { return add[currentKey] === "Haii"; });Then, delete all those keys from
addfilteredKeys.forEach(function(currentKey) { delete add[currentKey]; });
No explicit looping at all :-)
We can reduce the above seen two step process into a one step process, like this
Object.keys(add).forEach(function(currentKey) {
if (add[currentKey] === "Haii") {
delete add[currentKey];
}
});
Again, no explicit looping :-)
Comments
var add = {
number1: 'hello',
number2: "Haii",
number3: "Byee"
};
for (var i in add) {
if (add[i] == "Haii") {
delete add[i];
}
}
try this:
