{
"title":"maxlength attribute for input and textarea elements",
"description":"Declares an upper bound on the number of characters the user can input. Normally the UI ignores attempts by the user to type in additional characters beyond this limit.",
"spec":"https://html.spec.whatwg.org/multipage/forms.html#attr-input-maxlength",
"status":"ls",
"links":[
{
"url":"https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input#attr-maxlength",
"title":"MDN Web Docs - attribute maxlength"
}
],
"bugs":[
{
"description":"In Opera 12.1 & below `ValidityState.tooLong` is true when the input's initial value exceeds the maxlength. Per the spec, it should instead be false until the user edits the value."
}
],
"categories":[
"DOM",
"HTML5",
"JS API"
],
"stats":{
"ie":{
"5.5":"u",
"6":"a #1 #2 #3",
"7":"a #1 #2 #3",
"8":"a #1 #2 #3",
"9":"a #1 #2 #3",
"10":"y",
"11":"y"
},
"edge":{
"12":"y #4",
"13":"y #4",
"14":"y #4",
"15":"y #4",
"16":"y #4",
"17":"y #4",
"18":"y #4",
"79":"y",
"80":"y",
"81":"y",
"83":"y"
},
"firefox":{
"2":"a #1 #2 #3",
"3":"a #1 #2 #3",
"3.5":"a #1 #2 #3",
"3.6":"a #1 #2 #3",
"4":"y #4",
"5":"y #4",
"6":"y #4",
"7":"y #4",
"8":"y #4",
"9":"y #4",
"10":"y #4",
"11":"y #4",
"12":"y #4",
"13":"y #4",
"14":"y #4",
"15":"y #4",
"16":"y #4",
"17":"y #4",
"18":"y #4",
"19":"y #4",
"20":"y #4",
"21":"y #4",
"22":"y #4",
"23":"y #4",
"24":"y #4",
"25":"y #4",
"26":"y #4",
"27":"y #4",
"28":"y #4",
"29":"y #4",
"30":"y #4",
"31":"y #4",
"32":"y #4",
"33":"y #4",
"34":"y #4",
"35":"y #4",
"36":"y #4",
"37":"y #4",
"38":"y #4",
"39":"y #4",
"40":"y #4",
"41":"y #4",
"42":"y #4",
"43":"y #4",
"44":"y #4",
"45":"y #4",
"46":"y #4",
"47":"y #4",
"48":"y #4",
"49":"y #4",
"50":"y #4",
"51":"y",
"52":"y",
"53":"y",
"54":"y",
"55":"y",
"56":"y",
"57":"y",
"58":"y",
"59":"y",
"60":"y",
"61":"y",
"62":"y",
"63":"y",
"64":"y",
"65":"y",
"66":"y",
"67":"y",
"68":"y",
"69":"y",
"70":"y",
"71":"y",
"72":"y",
"73":"y",
"74":"y",
"75":"y",
"76":"y",
"77":"y",
"78":"y",
"79":"y",
"80":"y"
},
"chrome":{
"4":"y",
"5":"y",
"6":"y",
"7":"y",
"8":"y",
"9":"y",
"10":"y",
"11":"y",
"12":"y",
"13":"y",
"14":"y",
"15":"y",
"16":"y",
"17":"y",
"18":"y",
"19":"y",
"20":"y",
"21":"y",
"22":"y",
"23":"y",
"24":"y",
"25":"y",
"26":"y",
"27":"y",
"28":"y",
"29":"y",
"30":"y",
"31":"y",
"32":"y",
"33":"y",
"34":"y",
"35":"y",
"36":"y",
"37":"y",
"38":"y",
"39":"y",
"40":"y",
"41":"y",
"42":"y",
"43":"y",
"44":"y",
"45":"y",
"46":"y",
"47":"y",
"48":"y",
"49":"y",
"50":"y",
"51":"y",
"52":"y",
"53":"y",
"54":"y",
"55":"y",
"56":"y",
"57":"y",
"58":"y",
"59":"y",
"60":"y",
"61":"y",
"62":"y",
"63":"y",
"64":"y",
"65":"y",
"66":"y",
"67":"y",
"68":"y",
"69":"y",
"70":"y",
"71":"y",
"72":"y",
"73":"y",
"74":"y",
"75":"y",
"76":"y",
"77":"y",
"78":"y",
"79":"y",
"80":"y",
"81":"y",
"83":"y",
"84":"y",
"85":"y",
"86":"y"
},
"safari":{
"3.1":"u",
"3.2":"a #1 #2 #3",
"4":"a #1 #2 #3",
"5":"u",
"5.1":"y",
"6":"y",
"6.1":"y",
"7":"y",
"7.1":"y",
"8":"y",
"9":"y",
"9.1":"y",
"10":"y",
"10.1":"y",
"11":"y",
"11.1":"y",
"12":"y",
"12.1":"y",
"13":"y",
"13.1":"y",
"14":"y",
"TP":"y"
},
"opera":{
"9":"u",
"9.5-9.6":"a #1",
"10.0-10.1":"a #1",
"10.5":"a #1",
"10.6":"a #1",
"11":"a #1",
"11.1":"a #1",
"11.5":"a #1",
"11.6":"a #1",
"12":"a #1",
"12.1":"a #1",
"15":"y",
"16":"y",
"17":"y",
"18":"y",
"19":"y",
"20":"y",
"21":"y",
"22":"y",
"23":"y",
"24":"y",
"25":"y",
"26":"y",
"27":"y",
"28":"y",
"29":"y",
"30":"y",
"31":"y",
"32":"y",
"33":"y",
"34":"y",
"35":"y",
"36":"y",
"37":"y",
"38":"y",
"39":"y",
"40":"y",
"41":"y",
"42":"y",
"43":"y",
"44":"y",
"45":"y",
"46":"y",
"47":"y",
"48":"y",
"49":"y",
"50":"y",
"51":"y",
"52":"y",
"53":"y",
"54":"y",
"55":"y",
"56":"y",
"57":"y",
"58":"y",
"60":"y",
"62":"y",
"63":"y",
"64":"y",
"65":"y",
"66":"y",
"67":"y",
"68":"y",
"69":"y"
},
"ios_saf":{
"3.2":"u",
"4.0-4.1":"y",
"4.2-4.3":"y",
"5.0-5.1":"y",
"6.0-6.1":"y",
"7.0-7.1":"y",
"8":"a #5",
"8.1-8.4":"a #5",
"9.0-9.2":"y",
"9.3":"y",
"10.0-10.2":"y",
"10.3":"y",
"11.0-11.2":"y",
"11.3-11.4":"y",
"12.0-12.1":"y",
"12.2-12.4":"y",
"13.0-13.1":"y",
"13.2":"y",
"13.3":"y",
"13.4-13.5":"y",
"14.0":"y"
},
"op_mini":{
"all":"a #1"
},
"android":{
"2.1":"u",
"2.2":"u",
"2.3":"y",
"3":"y",
"4":"y",
"4.1":"y",
"4.2-4.3":"y",
"4.4":"y",
"4.4.3-4.4.4":"y",
"81":"y #6"
},
"bb":{
"7":"y",
"10":"y"
},
"op_mob":{
"10":"a #1",
"11":"a #1",
"11.1":"a #1",
"11.5":"a #1",
"12":"a #1",
"12.1":"a #1",
"46":"a #6"
},
"and_chr":{
"81":"y #6"
},
"and_ff":{
"68":"y #6"
},
"ie_mob":{
"10":"y",
"11":"y"
},
"and_uc":{
"12.12":"y"
},
"samsung":{
"4":"y #6",
"5.0-5.4":"y #6",
"6.2-6.4":"y #6",
"7.2-7.4":"y #6",
"8.2":"y #6",
"9.2":"y #6",
"10.1":"y #6",
"11.1-11.2":"y #6",
"12.0":"y #6"
},
"and_qq":{
"10.4":"y"
},
"baidu":{
"7.12":"y"
},
"kaios":{
"2.5":"y #4"
}
},
"notes":"",
"notes_by_num":{
"1":"`<textarea>`'s' UI does not prevent the user from typing additional characters beyond the `maxlength` limit.",
"2":"Does not support the `HTMLTextAreaElement.maxLength` DOM property.",
"3":"Does not support [`ValidityState.tooLong`](https://developer.mozilla.org/en-US/docs/Web/API/ValidityState/tooLong). In some cases, this is because `.validity` is not supported in the first place.",
"4":"Does not support `ValidityState.tooLong` correctly in the (unlikely) case of the value being initially set too long, then changed by the user to a still incorrect state. See [Firefox bug](https://bugzilla.mozilla.org/show_bug.cgi?id=1203844) and [MS Edge bug](https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/4678527/).",
"5":"`<input>`'s UI does not prevent the user from typing additional characters beyond the `maxlength` limit between two existing characters of the string.",
"6":"Allows text beyond maxlength to be entered at first, but removes all characters past the maxlength when focus is lost."
},
"usage_perc_y":97.1,
"usage_perc_a":1.24,
"ucprefix":false,
"parent":"form-validation",
"keywords":"maximum,length,input,textarea,too,long,validity,state",
"ie_id":"",
"chrome_id":"",
"firefox_id":"",
"webkit_id":"",
"shown":true
}