我使用了jq插件imask.js。这个非常好的库，用于在Android手机上没有错误的屏蔽手机输入。但我有一个问题。当我想使用
时
几个输入，代码只适用于一个输入，因为document.getElementById和id应该是唯一的。我尝试使用getelementsbyclassname - 这不起作用。如何优化此代码？
! function(u, t) {
"object" == typeof exports && "undefined" != typeof module ? module.exports = t() : "function" == typeof define && define.amd ? define(t) : u.IMask = t()
}(this, function() {
"use strict";
function u(u) {
return "string" == typeof u || u instanceof String
}
function t(t, e) {
var n = arguments.length > 2 && void 0 !== arguments[2] ? arguments[2] : "";
return u(t) ? t : t ? e : n
}
function e(u, t) {
var e = t.cursorPos,
n = t.oldSelection,
i = t.oldValue,
s = Math.min(e, n.start),
o = e - s,
a = Math.max(n.end - s || i.length - u.length, 0);
return r({}, t, {
startChangePos: s,
head: u.substring(0, s),
tail: u.substring(s + o),
inserted: u.substr(s, o),
removed: i.substr(s, a),
removeDirection: a && (n.end === e || o ? h.RIGHT : h.LEFT)
})
}
function n(u, t) {
return t === h.LEFT && --u, u
}
function i(u) {
var t = arguments.length > 1 && void 0 !== arguments[1] ? arguments[1] : {},
e = i.MaskFactory(u, t);
return e.bindEvents(), e.rawValue = u.value, e
}
var s = function(u, t) {
if (!(u instanceof t)) throw new TypeError("Cannot call a class as a function")
},
o = function() {
function u(u, t) {
for (var e = 0; e < t.length; e++) {
var n = t[e];
n.enumerable = n.enumerable || !1, n.configurable = !0, "value" in n && (n.writable = !0), Object.defineProperty(u, n.key, n)
}
}
return function(t, e, n) {
return e && u(t.prototype, e), n && u(t, n), t
}
}(),
r = Object.assign || function(u) {
for (var t = 1; t < arguments.length; t++) {
var e = arguments[t];
for (var n in e) Object.prototype.hasOwnProperty.call(e, n) && (u[n] = e[n])
}
return u
},
a = function(u, t) {
if ("function" != typeof t && null !== t) throw new TypeError("Super expression must either be null or a function, not " + typeof t);
u.prototype = Object.create(t && t.prototype, {
constructor: {
value: u,
enumerable: !1,
writable: !0,
configurable: !0
}
}), t && (Object.setPrototypeOf ? Object.setPrototypeOf(u, t) : u.__proto__ = t)
},
l = function(u, t) {
if (!u) throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
return !t || "object" != typeof t && "function" != typeof t ? u : t
},
h = {
NONE: 0,
LEFT: -1,
RIGHT: 1
},
p = function() {
function u(t, e) {
s(this, u), this.el = t, this.mask = e.mask, this._listeners = {}, this._refreshingCount = 0, this._rawValue = "", this._unmaskedValue = "", this.saveSelection = this.saveSelection.bind(this), this._onInput = this._onInput.bind(this), this._onDrop = this._onDrop.bind(this)
}
return u.prototype.on = function(u, t) {
return this._listeners[u] || (this._listeners[u] = []), this._listeners[u].push(t), this
}, u.prototype.off = function(u, t) {
if (this._listeners[u]) {
if (t) {
var e = this._listeners[u].indexOf(t);
return e >= 0 && this._listeners.splice(e, 1), this
}
delete this._listeners[u]
}
}, u.prototype.bindEvents = function() {
this.el.addEventListener("keydown", this.saveSelection), this.el.addEventListener("input", this._onInput), this.el.addEventListener("drop", this._onDrop)
}, u.prototype.unbindEvents = function() {
this.el.removeEventListener("keydown", this.saveSelection), this.el.removeEventListener("input", this._onInput), this.el.removeEventListener("drop", this._onDrop)
}, u.prototype.fireEvent = function(u) {
(this._listeners[u] || []).forEach(function(u) {
return u()
})
}, u.prototype.processInput = function(u, n) {
n = e(u, n = r({
cursorPos: this.cursorPos,
oldSelection: this._selection,
oldValue: this.rawValue,
oldUnmaskedValue: this.unmaskedValue
}, n));
var i = t(this.resolve(u, n), u, this.rawValue);
return this.updateElement(i, n.cursorPos), i
}, u.prototype.saveSelection = function(u) {
this.rawValue !== this.el.value && console.warn("Uncontrolled input change, refresh mask manually!"), this._selection = {
start: this.selectionStart,
end: this.cursorPos
}
}, u.prototype.destroy = function() {
this.unbindEvents(), this._listeners.length = 0
}, u.prototype.updateElement = function(u, t) {
var e = this._calcUnmasked(u),
n = this.unmaskedValue !== e || this.rawValue !== u;
this._unmaskedValue = e, this._rawValue = u, this.el.value !== u && (this.el.value = u), this.updateCursor(t), n && this._fireChangeEvents()
}, u.prototype._fireChangeEvents = function() {
this.fireEvent("accept")
}, u.prototype.updateCursor = function(u) {
null != u && (this.cursorPos = u, this._delayUpdateCursor(u))
}, u.prototype._delayUpdateCursor = function(u) {
var t = this;
this._abortUpdateCursor(), this._changingCursorPos = u, this._cursorChanging = setTimeout(function() {
t._abortUpdateCursor(), t.cursorPos = t._changingCursorPos
}, 10)
}, u.prototype._abortUpdateCursor = function() {
this._cursorChanging && (clearTimeout(this._cursorChanging), delete this._cursorChanging)
}, u.prototype._onInput = function(u) {
this._abortUpdateCursor(), this.processInput(this.el.value)
}, u.prototype._onDrop = function(u) {
u.preventDefault(), u.stopPropagation()
}, u.prototype.resolve = function(u, t) {
return u
}, u.prototype._calcUnmasked = function(u) {
return u
}, o(u, [{
key: "rawValue",
get: function() {
return this._rawValue
},
set: function(u) {
this.processInput(u, {
cursorPos: u.length,
oldValue: this.rawValue,
oldSelection: {
start: 0,
end: this.rawValue.length
}
})
}
}, {
key: "unmaskedValue",
get: function() {
return this._unmaskedValue
},
set: function(u) {
this.rawValue = u
}
}, {
key: "selectionStart",
get: function() {
return this._cursorChanging ? this._changingCursorPos : this.el.selectionStart
}
}, {
key: "cursorPos",
get: function() {
return this._cursorChanging ? this._changingCursorPos : this.el.selectionEnd
},
set: function(u) {
this.el === document.activeElement && (this.el.setSelectionRange(u, u), this.saveSelection())
}
}]), u
}(),
c = function(u) {
function t() {
return s(this, t), l(this, u.apply(this, arguments))
}
return a(t, u), t.prototype.resolve = function(u) {
return this.mask.test(u)
}, t
}(p),
A = function(u) {
function t() {
return s(this, t), l(this, u.apply(this, arguments))
}
return a(t, u), t.prototype.resolve = function() {
return this.mask.apply(this, arguments)
}, t
}(p),
f = function(u) {
function e(t, n) {
s(this, e);
var i = l(this, u.call(this, t, n));
return i._hollows = [], i.placeholder = n.placeholder, i.definitions = r({}, e.DEFINITIONS, n.definitions), i._alignCursor = i._alignCursor.bind(i), i._alignCursorFriendly = i._alignCursorFriendly.bind(i), i._initialized = !0, i
}
return a(e, u), e.prototype._alignCursorFriendly = function() {
this.selectionStart === this.cursorPos && this._alignCursor()
}, e.prototype.bindEvents = function() {
u.prototype.bindEvents.call(this), this.el.addEventListener("click", this._alignCursorFriendly)
}, e.prototype.unbindEvents = function() {
u.prototype.unbindEvents.call(this), this.el.removeEventListener("click", this._alignCursorFriendly)
}, e.prototype._installDefinitions = function(u) {
this._definitions = u, this._charDefs = [], this._alignStops = [];
var t = this.mask;
if (t && u) {
for (var n = !1, i = !1, s = 0; s < t.length; ++s) {
var o = t[s],
r = !n && o in u ? e.DEF_TYPES.INPUT : e.DEF_TYPES.FIXED,
a = r === e.DEF_TYPES.INPUT || n,
l = r === e.DEF_TYPES.INPUT && i;
if (o !== e.STOP_CHAR)
if ("{" !== o && "}" !== o)
if ("[" !== o && "]" !== o) {
if (o === e.ESCAPE_CHAR) {
if (++s, !(o = t[s])) break;
r = e.DEF_TYPES.FIXED
}
this._charDefs.push({
char: o,
type: r,
optional: l,
unmasking: a
})
} else i = !i;
else n = !n;
else this._alignStops.push(this._charDefs.length)
}
this._buildResolvers()
}
}, e.prototype._buildResolvers = function() {
this._resolvers = {};
for (var u in this.definitions) this._resolvers[u] = IMask.MaskFactory(this.el, {
mask: this.definitions[u]
})
}, e.prototype._appendTail = function(u, n) {
for (var i = !(arguments.length > 2 && void 0 !== arguments[2]) || arguments[2], s = "", o = this._hollows.slice(), r = !1, a = 0, l = this._mapPosToDefIndex(u.length); a < n.length;)
if (this._isHollow(l)) ++l;
else {
var h = n[a],
p = this.def(l, u + s);
if (!p) {
r = !0;
break
}
var c, A;
if (p.type === e.DEF_TYPES.INPUT) {
var f = this._resolvers[p.char].resolve(h, l, u + s) || "";
c = !!f, A = !f && !p.optional, f ? f = t(f, h) : (!p.optional && i && (f = this._placeholder.char, A = !1), A || o.push(l)), f && (u += s + t(f, h), s = "")
} else s += p.char, c = h === p.char && (p.unmasking || !i);
A || ++l, (c || A) && ++a
}
return [u, o, r]
}, e.prototype._appendTailChunks = function(u, t, e) {
for (var n = !1, i = 0; i < t.length; ++i) {
var s = t[i][1],
o = this._appendTail(u, s, e);
if (u = o[0], this._hollows = o[1], n = o[2]) break;
var r = t[i + 1],
a = r && r[0];
a && (u = this._appendPlaceholderEnd(u, a))
}
return [u, this._hollows, n]
}, e.prototype._extractInput = function(u) {
for (var t = arguments.length > 1 && void 0 !== arguments[1] ? arguments[1] : 0, e = arguments[2], n = "", i = e && this._mapPosToDefIndex(e), s = 0, o = this._mapPosToDefIndex(t); s < u.length && (!i || o < i); ++o) {
var r = u[s];
if (!this.def(o, u)) break;
this._isHiddenHollow(o) || (this._isInput(o) && !this._isHollow(o) && (n += r), ++s)
}
return n
}, e.prototype._extractInputChunks = function(u, t) {
for (var e = [], n = 0; n < t.length && u; ++n) {
var i = t[n],
s = t[n + 1];
e.push([i, this._extractInput(u, i, s)]), s && (u = u.slice(s - i))
}
return e
}, e.prototype._isHollow = function(u) {
return this._hollows.indexOf(u) >= 0
}, e.prototype._isHiddenHollow = function(u) {
return this._isHollow(u) && this.def(u) && this.def(u).optional
}, e.prototype._isInput = function(u) {
return this.def(u) && this.def(u).type === e.DEF_TYPES.INPUT
}, e.prototype._hiddenHollowsBefore = function(u) {
var t = this;
return this._hollows.filter(function(e) {
return e < u && t._isHiddenHollow(e)
})
}, e.prototype._mapDefIndexToPos = function(u) {
return u - this._hiddenHollowsBefore(u).length
}, e.prototype._mapPosToDefIndex = function(u) {
for (var t = u, e = 0; e < this._hollows.length; ++e) {
var n = this._hollows[e];
if (n >= t) break;
this._isHiddenHollow(n) && ++t
}
return t
}, e.prototype._generateInsertSteps = function(u, t) {
for (var e = !1, n = [
[u, (a = this._hollows).slice()]
], i = 0; i < t.length && !e; ++i) {
var s = t[i],
o = this._appendTail(u, s, !1),
r = o[0],
a = o[1],
e = o[2];
this._hollows = a, e || r === u || (n.push([r, a]), u = r)
}
return this._hollows = a, n
}, e.prototype.resolve = function(u, t) {
var e = this,
n = t.cursorPos,
i = t.startChangePos,
s = t.inserted,
o = i + t.removed.length,
r = this._mapPosToDefIndex(o),
a = [o].concat(this._alignStops.filter(function(u) {
return u >= r
}).map(function(u) {
return e._mapDefIndexToPos(u)
})),
l = this._extractInputChunks(t.tail, a),
p = this._mapPosToDefIndex(i);
this._hollows = this._hollows.filter(function(u) {
return u < p
});
var c = t.head;
t.removeDirection === h.LEFT && (c = c.slice(0, this._nearestInputPos(i)));
for (var A = this._generateInsertSteps(c, s), f = A.length - 1; f >= 0; --f) {
var F, d, _ = A[f];
F = _[0], this._hollows = _[1];
var E = this._appendTailChunks(F, l);
if (d = E[0], this._hollows = E[1], !E[2]) {
c = d, n = F.length;
break
}
}
return c = this._appendPlaceholderEnd(c), t.cursorPos = this._nearestInputPos(n, t.removeDirection), c
}, e.prototype._fireChangeEvents = function() {
u.prototype._fireChangeEvents.call(this), this.isComplete && this.fireEvent("complete")
}, e.prototype._appendFixedEnd = function(u) {
for (var t = this._mapPosToDefIndex(u.length);; ++t) {
var e = this.def(t, u);
if (!e) break;
if (!this._isHiddenHollow(t)) {
if (this._isInput(t)) break;
t >= u.length && (u += e.char)
}
}
return u
}, e.prototype._appendPlaceholderEnd = function(u, t) {
for (var n = t && this._mapPosToDefIndex(t), i = this._mapPosToDefIndex(u.length); !n || i < n; ++i) {
var s = this.def(i, u);
if (!s) break;
this._isInput(i) && !this._isHollow(i) && this._hollows.push(i), ("always" === this._placeholder.show || t) && (u += s.type === e.DEF_TYPES.FIXED ? s.char : s.optional ? "" : this._placeholder.char)
}
return u
}, e.prototype._calcUnmasked = function(u) {
for (var t = "", e = 0, n = 0; e < u.length; ++n) {
var i = u[e],
s = this.def(n, u);
if (!s) break;
this._isHiddenHollow(n) || (s.unmasking && !this._isHollow(n) && (this._isInput(n) && this._resolvers[s.char].resolve(i, e, u) || s.char === i) && (t += i), ++e)
}
return t
}, e.prototype.defs = function(u) {
for (var t = [], e = 0;; ++e) {
var n = this.def(e, u);
if (!n) break;
t.push(n)
}
return t
}, e.prototype.def = function(u, t) {
return this._charDefs[u]
}, e.prototype._refreshValue = function() {
this._initialized && (this.unmaskedValue = this.unmaskedValue)
}, e.prototype._nearestInputPos = function(u) {
var t = arguments.length > 1 && void 0 !== arguments[1] ? arguments[1] : h.LEFT;
if (!t) return u;
var e, i, s, o, r = this._mapPosToDefIndex(u),
a = r;
for (o = n(a, t); this.def(o); a += t, o += t)
if (null == e && this._isInput(o) && (e = a), null == s && this._isHollow(o) && !this._isHiddenHollow(o) && (s = a), this._isInput(o) && !this._isHollow(o)) {
i = a;
break
}
if (t === h.LEFT || null == e) {
var l = !1;
for (o = n(a, t = -t); this.def(o) && (!this._isInput(o) || (e = a, !this._isHollow(o) || this._isHiddenHollow(o))) && (a === r && (l = !0), !l || null == e); a += t, o += t);
(l = l || !this.def(o)) && null != e && (a = e)
} else null == i && (a = null != s ? s : e);
return this._mapDefIndexToPos(a)
}, e.prototype._alignCursor = function() {
this.cursorPos = this._nearestInputPos(this.cursorPos)
}, o(e, [{
key: "isComplete",
get: function() {
for (var u = 0;; ++u) {
var t = this.def(u);
if (!t) break;
if (this._isInput(u) && !t.optional && this._isHollow(u)) return !1
}
return !0
}
}, {
key: "unmaskedValue",
get: function() {
return this._unmaskedValue
},
set: function(u) {
this._hollows.length = 0;
var t, e = this._appendTail("", u);
t = e[0], this._hollows = e[1], this.updateElement(this._appendPlaceholderEnd(t)), this._alignCursor()
}
}, {
key: "placeholder",
get: function() {
return this._placeholder
},
set: function(u) {
this._placeholder = r({}, e.DEFAULT_PLACEHOLDER, u), this._refreshValue()
}
}, {
key: "placeholderLabel",
get: function() {
var u = this;
return this.defs().map(function(t) {
return t.type === e.DEF_TYPES.FIXED ? t.char : t.optional ? "" : u._placeholder.char
}).join("")
}
}, {
key: "definitions",
get: function() {
return this._definitions
},
set: function(u) {
this._installDefinitions(u), this._refreshValue()
}
}, {
key: "mask",
get: function() {
return this._mask
},
set: function(u) {
this._mask = u, this._initialized && (this.definitions = this.definitions)
}
}]), e
}(p);
f.DEFINITIONS = {
0: /\d/,
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"*": /./
}, f.DEF_TYPES = {
INPUT: "input",
FIXED: "fixed"
}, f.DEFAULT_PLACEHOLDER = {
show: "lazy",
char: "_"
}, f.STOP_CHAR = "'", f.ESCAPE_CHAR = "\\";
var F = function(u) {
function t(e, n) {
s(this, t);
var i = l(this, u.call(this, e, n));
return i.multipass = n.multipass, i._compiledMasks = i.mask.map(function(u) {
return IMask.MaskFactory(e, u)
}), i
}
return a(t, u), t.prototype.resolve = function(u, t) {
var e = this._pipe(u, t);
if (!this.multipass) return e;
for (var n, i = t.cursorPos, s = e; n !== s;) n = s, s = this._pipe(n, {
cursorPos: n.length,
oldValue: n,
oldSelection: {
start: 0,
end: n.length
}
});
return t.cursorPos = i - (e.length - n.length), n
}, t.prototype._pipe = function(u, t) {
return this._compiledMasks.reduce(function(u, n) {
var i = e(u, t),
s = n.resolve(u, i);
return t.cursorPos = i.cursorPos, s
}, u)
}, t.prototype.bindEvents = function() {
u.prototype.bindEvents.call(this), this._compiledMasks.forEach(function(u) {
u.bindEvents(), p.prototype.unbindEvents.apply(u)
})
}, t.prototype.unbindEvents = function() {
u.prototype.unbindEvents.call(this), this._compiledMasks.forEach(function(u) {
return u.unbindEvents()
})
}, t
}(p);
return i.MaskFactory = function(t, e) {
var n = e.mask;
return n instanceof p ? n : n instanceof RegExp ? new c(t, e) : n instanceof Array ? new F(t, e) : u(n) ? new f(t, e) : n.prototype instanceof p ? new n(t, e) : n instanceof Function ? new A(t, e) : new p(t, e)
}, i.BaseMask = p, i.FuncMask = A, i.RegExpMask = c, i.PatternMask = f, window.IMask = i, i
});
//# sourceMappingURL=imask.min.js.map
var phoneMask = new IMask(document.getElementById('phone-mask'), {
mask: '+{7}(000)000-00-00',
placeholder: {
show: 'always'
}
});
var phoneMask = new IMask(document.getElementById('phone'), {
mask: '+{7}(000)000-00-00',
placeholder: {
show: 'always'
}
});
var phoneMask = new IMask(document.getElementById('mask'), {
mask: '+{7}(000)000-00-00',
placeholder: {
show: 'always'
}
});<input id="phone-mask" value="" type="tel">
<input id="phone-mask" value="" type="tel">
<input id="phone" value="" type="tel">
<input id="mask" value="" type="tel">
<script type='text/javascript' src='http://code.jquery.com/jquery-1.11.0.js'></script>
答案 0 :(得分：0)
为什么不使用包含的jQuery？
$([type="tel"]).iMask([options]);
这应该有用。
但是如果您不想使用jQuery选择器，您可以为每个输入添加一些类名，即mask，然后使用此代码段：
var elements = document.getElementsByClassName("mask");
for (var i = 0; i < elements.length; i++) {
new IMask(elements[i], {
mask: '+{7}(000)000-00-00',
placeholder: {
show: 'always'
}
});
}
答案 1 :(得分：0)
将class="phone-mask"添加到所有项目后，您可以执行以下操作：
var items = document.getElementsByClassName('phone-mask');
Array.prototype.forEach.call(items, function(element) {
var phoneMask = new IMask(element, {
mask: '+{7}(000)000-00-00',
placeholder: {
show: 'always'
}
});
});