7 Useful JavaScript Tricks
Je retiens:
Virer les false ou équivalents dans un array
array.filter(boolean)
Mélanger des objets
const person = { name: 'David Walsh', gender: 'Male' };
const tools = { computer: 'Mac', editor: 'Atom' };
const attributes = { handsomeness: 'Extreme', hair: 'Brown', eyes: 'Blue' };
const summary = {...person, ...tools, ...attributes};
/*
Object {
"computer": "Mac",
"editor": "Atom",
"eyes": "Blue",
"gender": "Male",
"hair": "Brown",
"handsomeness": "Extreme",
"name": "David Walsh",
}
*/
Récupérer la query string
// Assuming "?post=1234&action=edit"
var urlParams = new URLSearchParams(window.location.search);
console.log(urlParams.has('post')); // true
console.log(urlParams.get('action')); // "edit"
console.log(urlParams.getAll('action')); // ["edit"]
console.log(urlParams.toString()); // "?post=1234&action=edit"
console.log(urlParams.append('active', '1')); // "?post=1234&action=edit&active=1"
Récuperer l'URL absolue
var getAbsoluteUrl = (function() {
var a;
return function(url) {
if(!a) a = document.createElement('a');
a.href = url;
return a.href;
};
})();
// Usage
getAbsoluteUrl('/something'); // https://davidwalsh.name/something
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