ng2-tree
Version:
angular2 component for visualizing data that can be naturally represented as a tree
82 lines • 10 kB
JavaScript
export function isEmpty(value) {
if (typeof value === 'string') {
return !/\S/.test(value);
}
if (Array.isArray(value)) {
return value.length === 0;
}
return isNil(value);
}
export function trim(value) {
return isNil(value) ? '' : value.trim();
}
export function has(value, prop) {
return value && typeof value === 'object' && Object.prototype.hasOwnProperty.call(value, prop);
}
export function isFunction(value) {
return typeof value === 'function';
}
export function get(value, path, defaultValue) {
let result = value;
for (const prop of path.split('.')) {
if (!result || !Reflect.has(result, prop)) {
return defaultValue;
}
result = result[prop];
}
return isNil(result) || result === value ? defaultValue : result;
}
export function omit(value, propsToSkip) {
if (!value) {
return value;
}
const normalizedPropsToSkip = typeof propsToSkip === 'string' ? [propsToSkip] : propsToSkip;
return Object.keys(value).reduce((result, prop) => {
if (includes(normalizedPropsToSkip, prop)) {
return result;
}
return Object.assign(result, { [prop]: value[prop] });
}, {});
}
export function size(value) {
return isEmpty(value) ? 0 : value.length;
}
export function once(fn) {
let result;
return (...args) => {
if (fn) {
result = fn(...args);
fn = null;
}
return result;
};
}
export function defaultsDeep(target, ...sources) {
return [target].concat(sources).reduce((result, source) => {
if (!source) {
return result;
}
Object.keys(source).forEach(prop => {
if (isNil(result[prop])) {
result[prop] = source[prop];
return;
}
if (typeof result[prop] === 'object' && !Array.isArray(result[prop])) {
result[prop] = defaultsDeep(result[prop], source[prop]);
return;
}
});
return result;
}, {});
}
export function includes(target, value) {
if (isNil(target)) {
return false;
}
const index = typeof target === 'string' ? target.indexOf(value) : target.indexOf(value);
return index > -1;
}
export function isNil(value) {
return value === undefined || value === null;
}
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