35 lines
794 B
JavaScript
35 lines
794 B
JavaScript
function check(elm, rule) {
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let input = elm.getElementsByTagName('input')[0]
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rules[rule.validator](input, rule.trigger, (s, error) => {
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if (s) {
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elm.className = 'input-box'
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let eElm = elm.getElementsByClassName('input-error-text')[0]
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if(eElm) {
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elm.removeChild(eElm)
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}
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}
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else {
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elm.className = 'input-box error'
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let e = rule.message || error
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let eElm = document.createElement('span');
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eElm.className = 'input-error-text'
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eElm.innerHTML = e
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elm.appendChild(eElm)
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}
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})
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}
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const rules = {
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notEmpty: (input, trigger, cd) => {
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input.addEventListener(trigger, ()=>{
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if (input.value) {
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cd(true)
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}
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else {
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cd(false, '不能为空！')
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}
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})
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}
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}
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export { check } |