function transformOfToIn(newValue) {
    const wordArray = newValue.trim().split(' ');
    const index = wordArray.indexOf('of');
    if (index !== -1 && !wordArray.includes('in')) {
        wordArray[index] = 'in';
        newValue = wordArray.join(' ');
    }
    return newValue;
}
function transformOfToIn(newValue) {
    const wordArray = newValue.trim().split(' ');
    const index = wordArray.indexOf('of');
    if (index !== -1 && !wordArray.includes('in')) {
        wordArray[index] = 'in';
        newValue = wordArray.join(' ');
    }
    return newValue;
}
function transformOfToIn ( newValue ) { const wordArray = newValue . trim ( ) . split ( ' ' ) ; const index = wordArray . indexOf ( 'of' ) ; if ( index !== - 1 && ! wordArray . includes ( 'in' ) ) { wordArray [ index ] = 'in' ; newValue = wordArray . join ( ' ' ) ; } return newValue ; }
transform 'of' to 'in'， 以支持for="item of items"语法

@param {string} newValue 待转化的字符串
@return {string} 被转化后的数组字符串
transform of to in ， 以支持for = item of items 语法