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@lweb-utils/dom

v1.0.2

Published

@lweb-utils/dom

Downloads

1

Readme

@lweb-utils/dom

Dom相关工具函数

npm i @lweb-utils/dom --save

1. hasClass

hasClass(element, className)

判断某个元素是否包含相应的class。

参数

element(HTMLElement): 判断的HTML元素。
className(string): 类名。

返回值

(boolean): 是否包含指定的类名。

示例

const div = document.getElementById('example');
const has = hasClass(div, 'example');

2. addClass

addClass(element, className)

给特定的元素增加类名。

参数

element(HTMLElement): 增加类名的元素。
className(string): 增加的类名。

返回值

示例

const div = document.getElementById('example');
addClass(div, 'example');

3. removeClass

removeClass(element, className);

移除某个元素特定的类名。

参数

element(HTMLElement): 移除类名的元素。
className(string): 移除的类名。

返回值

示例

const div = document.getElementById('example');
removeClass(div, 'example');

4. copyTextToClipBoard

copyTextToClipBoard(text);

复制特定的字符串到剪切板。

参数

text(string): 被复制的字符串。

返回值

(boolean): 是否复制成功。

示例

const isSuccess = copyTextToClipBoard('code');

5. checkPassiveSupport

checkPassiveSupport()

判断当前浏览器环境是否支持被动事件。

参数

返回值

(boolean): 是否支持被动时间。

示例

const isSupport = checkPassiveSupport();

6. addEvent

addEvent(element, eventName, eventCallback)

为某个元素注册事件。

参数

element(HTMLElement): 注册事件的目标元素。
eventName(string): 事件名。
eventCallback(function): 事件回调函数。

返回值

示例

const div = document.getElementById('example');
const cb = () => {
  // dosomething...
};
addEvent(div, 'click', cb);

7. removeEvent

removeEvent(element, eventName, eventCallback)

移除某个元素被注册的事件。

参数

element(HTMLElement): 移除事件的目标元素。
eventName(string): 事件名。
eventCallback(function): 事件回调函数。

返回值

示例

const div = document.getElementById('example');
const cb = () => {
  // dosomething...
};
removeEvent(div, 'click', cb);

8. loadImg

loadImg(url, callback)

异步加载图片。

参数

url(string|object): 图片地址。
callback(function): 回调函数。

返回值

(HTMLImageElement): 图片信息。

示例

const cb = (success) => {
  if (success) {
    // dosomething...
  } else {
    // dosomething...
  }
};
loadImg('http://www.abc.com/a.png', cb);

9. loadScript

loadScript(url, callback)

异步加载脚本。

参数

url(string|object): 脚本地址。
callback(function): 脚本函数。

返回值

(HTMLImageElement): 脚本信息。

示例

const cb = (success) => {
  if (success) {
    // dosomething...
  } else {
    // dosomething...
  }
};
loadScript('http://www.abc.com/a.js', cb);

10. ready

ready(callback)

判断是否当前文档已加载完成。

参数

callback(function): 加载成功回调函数。

返回值

示例

const cb = () => {
  // dosomething...
};
ready(cb);

11. requestWithoutAjax

requestWithoutAjax(url, params, method)

通过form的方式发起请求。

参数

url(string): 请求的url。
params(object): 请求的参数对象。
method(string): 请求方法,如POST, PUT

返回值

示例

const url = 'http://www.abc.com';
const params = {
  a: 1,
  b: 2,
};
requestWithoutAjax(url, params, 'POST');

12. scrollTo

scrollTo(element, target, duration)

滚动指定元素的内容到相应的scrollTop位置。支持平滑滚动和scrollTop为小数的浏览器,比如小米。支持ios浏览器。

参数

element(HTMLElement): 可滚动的容器元素。
target(number): 滚动到的目标scrollTop值,单位为px。
duration(number): 滚动时长,设置时平滑滚动,否则瞬间滚动。单位为ms。

返回值

示例

const div = document.getElementById('example');

// 瞬间滚动到scrollTop为100px的位置
scrollTo(div, 100);
// 200ms滚动到scrollTop为100px的位置
scrollTo(div, 100, 200);