Deterministic lifesavers for common JavaScript errors, mistakes, and undefined behavior. It also includes helper functions for missing features prevalent in other languages that usually would help avoid these issues.
These helper functions are based on experiences I've had wit' the many quirks o' JavaScript. This project be meant to create helper functions that help ye avoid these quirks that cause errors 'n unexpected behavior when you be lost at sea.
Check if a value is completely and totally empty. Ensures it is actually empty and not 0 or false.
let value = 0;
empty(value); // false
value = false;
empty(value); // false
value = {};
empty(value); // true
value = undefined
empty(value); // trueconst [result, error] = TRY(function);
if (error) {
// handle error
throw new Error();
}
// use result
console.log(result);Implements JavaScript version of sleep.
await sleep(5); // waits for 5 seconds.Local storage helper functions that keep the type of the value intact.
set('key', {test: true});
const object = get('key'); // {test: true}
object.test; // true (not "true")
set('key', 5);
get('key'); // 5 (not "5")
set('key', true);
get('key'); // true (not "true")
set('key', "string");
get('key'); // "string"
set('key'); // clear the value of the key
get('key') // null
forget('key'); // delete key-value pairStrip HTML tags from a string.
stripTags('<p>foo</p>'); // returns fooPluralize word based on an integer value. This will account for irregular plural nouns in English.
If the integer value given is not 1, then the plural version of the word will be returned. Otherwise, the word given
will be returned.
status.innerText = count + ' search ' + pluralize('result', count);Title case a string.
titleCase('change case of sentence to Title Case');Trim prefixes and suffixes.
trimPrefix('foobar', 'foo')
trimSuffix('foobar', 'bar')end(value); // Returns last item without modifying the underlying array.
pluck(value, 'key'); // Returns an array of values with provided 'key' from `value`.Generate a random number with min and max.
randomInt(0, 5);
randomInt(10, 20);Sometimes you need to create elements temporarily. This function creates an element (by default a div), hides it using CSS, and mounts it to the HTML body. This element is then passed to the callback function you provide. When your function returns, the element is removed.
// Creates element, mounts to the body hidden.
// Passes it to callback.
tempElement(element => {
element.innerText = 'Hello, lifesaver!';
});
// Element is then removed automatically.
// By default, temp element is a <div>, but you can optionally pass a tagname.
tempElement(span => {
span.innerText = 'Hello, lifesaver!';
}, 'span');
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