Example 1: filter javascript array
var words = ['spray', 'limit', 'elite', 'exuberant', 'destruction', 'present'];
const result = words.filter(word => word.length > 6);
console.log(result);
Example 2: how the filter() function works javascript
const arr = [1, 2, 3, 4, 5, 6, 7, 8, 9];
const filter = arr.filter((number) => number > 5);
console.log(filter);
Example 3: js filter object
function filterObj( obj, predicate ) {
var result = {}, key;
for ( key in obj ) {
if ( obj.hasOwnProperty( key ) && predicate( key, obj[ key ] ) ) {
result[ key ] = obj[ key ];
}
}
return result;
};
var obj = {
name : 'john',
lastName : 'smith',
age : 32
}
var filteredObj = filterObj( obj, function( key, value ) {
return key !== 'age' && value !== 'smith'
});
console.log( filteredObj );
Example 4: filter javascript
const arr = [1, 2, 3, 4, 5, 6, 7, 8, 9];
const filter = arr.filter((number) => number > 5);
console.log(filter);
or
const words = ['spray', 'limit', 'elite', 'exuberant', 'destruction', 'present'];
const result = words.filter(word => word.length > 6);
console.log(result);
Example 5: array.filter in javascript
const array = [2, 3, 4]
if (event.target.checked) {
newValue.push(option);
} else {
newValue = newValue.filter(item => item.id != option.id);
}
const words = ['spray', 'limit', 'elite', 'exuberant', 'destruction', 'present'];
const result = words.filter(word => word.length > 6);
Example 6: javascript array filter
run.addEventListener("click", function () {
let array = [];
people.forEach((elem) => {
if (elem.age > 18) {
array.push(elem);
} else {
("");
}
});
console.log(array);
});