Javascript error cannot read property match of undefined

var str = ' exercise_ files_ attributes_ ' + index + ' _ content' ; var textarea = $ ( ' textarea[ id= str] ' ) ; / / < - - str is a string andalert( textarea. val( ) ) ; - - $ ( ' textarea[ id= " ' + str +. twice in longString, which in turn will make split( ) return an array with only one value. You need to change it to: var longString = "? s= " + token + " & _ sft_ category= " ;. character should only be used once,. Uncaught TypeError: Cannot read property ' match' of undefined at h ( jquery. js: 7) at HTMLDivElement. complete ( jquery- 1. js: 5) at c ( jquery- 1.

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  • Video:Error cannot read

    Undefined property read

    js: 3) at Object. if( $ ( " # config" ) ) {. is always going to be true with jQuery since jQuery returns an object and objects are truthy. The check should be checking the length which will return a number and zero is false. if ( $ ( " # config" ). TypeError: Cannot read property ' match' of undefined at EventEmitter. removeInvalidNodeErrors ( / home/ travis/ build/ [ path] / node_ modules/ eslint/ lib/ rules / no- irregular- whitespace. js: 51: 25) at emitOne ( events. verbose stack TypeError: Cannot read property ' match' of undefined 18 verbose stack at tarballToVersion ( / usr/ local/ lib/ node_ modules/ npm/ lib/ install/ inflate- shrinkwrap. js: 87: 20) 18 verbose stack at inflatableChild. そのエラーのまんまですオブジェクトの無いプロパティを参照しようとするとundefinedが 帰ります underfinedやnullなどはオブジェクトでは無いプリミティブな値で暗黙の オブジェクト変数の対象外の値ですこのような絶対オブジェクトでは無い値.

    動作に問題ないなら、 とりあえず無視して使うか com/ ajaxorg/ ace- builds/ blob/ master/ src/ ace. js githubのissueに登録するか、 ご自分でpull requestを 出してみては? もしくはtagをJSに変えて質問を立て直してみましょう。. Instead of ' inputtxt. match( phoneno) ' use ' inputtxt. match( phoneno) '. http: / / jsfiddle. net/ ntynf5wc/ 1/ if ( inputtxt. match( phoneno) ) { return true; }. JavaScriptはプリミティブ型であるStringでもメソッドを持てる言語ですが、 replaceは そのString型に用意されているメソッドです。 Uncaught TypeError: Cannot read property ' replace' of undefined 上記エラーは「 undefined( 未定義) な.