Basic Utils for JavaScript

The basic utils for javascript. This library will keep the utils as small as possible. You can import the module you want to use on demand. Here is an example:

var isArray = require('@john-yuan/utils/isArray');

if (!isArray(it)) {
    throw new TypeError('it is not an array');
}

Install

npm i @john-yuan/utils

Modules

• isAbsoluteURL(url)
• isArray(it)
• isFunction(it)
• isPlainObject(it)
• merge(target, ...source)
• trim(str)

API

isAbsoluteURL(url)

• url {string}
• Returns: {boolean}

Check whether the url is absolute url. Returns true if the url is abosolute, otherwise false is returned.

isArray(it)

• it {any}
• Returns: {boolean}

Check whether the variable is an instance of Array. Returns true if the variable is an instance of Array, otherwise false is returned.

isFunction(it)

• it {any}
• Returns: {boolean}

Check whether the variable is a function. Returns true if the variable is a function, otherwise false is returned.

isPlainObject(it)

• it {any}
• Returns: {boolean}

Check whether the variable is a plain object. Returns true if the variable is a plain object, otherwise false is returned.

merge(target, ...source)

• target {Object}
• source {Object}
• Returns: {Object}

Copy any non-undefined values of source to target and overwrites the corresponding original values. This function will modify the target object. Returns the modified target object.

trim(str)

• str {string}
• Returns: {string}

Removes the leading and trailing white space and line terminator characters from a string. If str is null or undefined, it is treated as an empty string. If str is not a string, it will be converted to a string first. This function retruns the trimed string.